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Finding the Fourth Proportional to 974.10, 1,461.13 and 243.67

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Solution

The fourth proportional to 974.10, 1,461.13 and 243.67 is: 365.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.10 : 1,461.13 = 243.67 : x
  2. Step 2: Convert to fraction form
    974.10/1,461.13 = 243.67/x
  3. Step 3: Cross multiply
    974.10x = 1,461.13 × 243.67
  4. Step 4: Simplify right side
    974.10x = 356,032.94
  5. Step 5: Solve for x
    x = 356,032.94/974.10
  6. Step 6: Final answer
    x = 365.50

Related Problems

Find fourth proportional to 487.05, 730.56 and 121.84
Half scale
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Double scale
Find fourth proportional to 975.10, 1,462.63 and 244.67
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.