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Finding the Fourth Proportional to 477.35, 658.77 and 270.35

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Solution

The fourth proportional to 477.35, 658.77 and 270.35 is: 373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.35 : 658.77 = 270.35 : x
  2. Step 2: Convert to fraction form
    477.35/658.77 = 270.35/x
  3. Step 3: Cross multiply
    477.35x = 658.77 × 270.35
  4. Step 4: Simplify right side
    477.35x = 178,098.47
  5. Step 5: Solve for x
    x = 178,098.47/477.35
  6. Step 6: Final answer
    x = 373.10

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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.