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Finding the Fourth Proportional to 477.17, 715.82 and 203.25

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Solution

The fourth proportional to 477.17, 715.82 and 203.25 is: 304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.17 : 715.82 = 203.25 : x
  2. Step 2: Convert to fraction form
    477.17/715.82 = 203.25/x
  3. Step 3: Cross multiply
    477.17x = 715.82 × 203.25
  4. Step 4: Simplify right side
    477.17x = 145,489.40
  5. Step 5: Solve for x
    x = 145,489.40/477.17
  6. Step 6: Final answer
    x = 304.90

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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.