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Finding the Fourth Proportional to 477.38, 716.04 and 203.30

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Solution

The fourth proportional to 477.38, 716.04 and 203.30 is: 304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.38 : 716.04 = 203.30 : x
  2. Step 2: Convert to fraction form
    477.38/716.04 = 203.30/x
  3. Step 3: Cross multiply
    477.38x = 716.04 × 203.30
  4. Step 4: Simplify right side
    477.38x = 145,570.93
  5. Step 5: Solve for x
    x = 145,570.93/477.38
  6. Step 6: Final answer
    x = 304.94

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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.