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Finding the Fourth Proportional to 476.20, 714.18 and 151.57

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Solution

The fourth proportional to 476.20, 714.18 and 151.57 is: 227.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.20 : 714.18 = 151.57 : x
  2. Step 2: Convert to fraction form
    476.20/714.18 = 151.57/x
  3. Step 3: Cross multiply
    476.20x = 714.18 × 151.57
  4. Step 4: Simplify right side
    476.20x = 108,244.85
  5. Step 5: Solve for x
    x = 108,244.85/476.20
  6. Step 6: Final answer
    x = 227.31

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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.