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Finding the Fourth Proportional to 487.73, 731.57 and 163.01

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Solution

The fourth proportional to 487.73, 731.57 and 163.01 is: 244.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.73 : 731.57 = 163.01 : x
  2. Step 2: Convert to fraction form
    487.73/731.57 = 163.01/x
  3. Step 3: Cross multiply
    487.73x = 731.57 × 163.01
  4. Step 4: Simplify right side
    487.73x = 119,253.23
  5. Step 5: Solve for x
    x = 119,253.23/487.73
  6. Step 6: Final answer
    x = 244.51

Related Problems

Find fourth proportional to 243.87, 365.79 and 81.51
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Double scale
Find fourth proportional to 488.73, 733.07 and 164.01
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.