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Finding the Fourth Proportional to 476.13, 714.87 and 303.88

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Solution

The fourth proportional to 476.13, 714.87 and 303.88 is: 456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.13 : 714.87 = 303.88 : x
  2. Step 2: Convert to fraction form
    476.13/714.87 = 303.88/x
  3. Step 3: Cross multiply
    476.13x = 714.87 × 303.88
  4. Step 4: Simplify right side
    476.13x = 217,234.70
  5. Step 5: Solve for x
    x = 217,234.70/476.13
  6. Step 6: Final answer
    x = 456.25

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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.