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Finding the Fourth Proportional to 472.91, 710.06 and 291.06

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Solution

The fourth proportional to 472.91, 710.06 and 291.06 is: 437.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.91 : 710.06 = 291.06 : x
  2. Step 2: Convert to fraction form
    472.91/710.06 = 291.06/x
  3. Step 3: Cross multiply
    472.91x = 710.06 × 291.06
  4. Step 4: Simplify right side
    472.91x = 206,668.61
  5. Step 5: Solve for x
    x = 206,668.61/472.91
  6. Step 6: Final answer
    x = 437.02

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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.