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Finding the Fourth Proportional to 362.40, 500.16 and 207.12

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Solution

The fourth proportional to 362.40, 500.16 and 207.12 is: 285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.40 : 500.16 = 207.12 : x
  2. Step 2: Convert to fraction form
    362.40/500.16 = 207.12/x
  3. Step 3: Cross multiply
    362.40x = 500.16 × 207.12
  4. Step 4: Simplify right side
    362.40x = 103,593.14
  5. Step 5: Solve for x
    x = 103,593.14/362.40
  6. Step 6: Final answer
    x = 285.85

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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.