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Finding the Fourth Proportional to 476.66, 714.88 and 151.96

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Solution

The fourth proportional to 476.66, 714.88 and 151.96 is: 227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.66 : 714.88 = 151.96 : x
  2. Step 2: Convert to fraction form
    476.66/714.88 = 151.96/x
  3. Step 3: Cross multiply
    476.66x = 714.88 × 151.96
  4. Step 4: Simplify right side
    476.66x = 108,633.16
  5. Step 5: Solve for x
    x = 108,633.16/476.66
  6. Step 6: Final answer
    x = 227.90

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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.