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Finding the Fourth Proportional to 435.28, 600.74 and 248.76

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Solution

The fourth proportional to 435.28, 600.74 and 248.76 is: 343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.28 : 600.74 = 248.76 : x
  2. Step 2: Convert to fraction form
    435.28/600.74 = 248.76/x
  3. Step 3: Cross multiply
    435.28x = 600.74 × 248.76
  4. Step 4: Simplify right side
    435.28x = 149,440.08
  5. Step 5: Solve for x
    x = 149,440.08/435.28
  6. Step 6: Final answer
    x = 343.32

Related Problems

Find fourth proportional to 217.64, 300.37 and 124.38
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.