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Finding the Fourth Proportional to 476.62, 715.61 and 304.38

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Solution

The fourth proportional to 476.62, 715.61 and 304.38 is: 457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.62 : 715.61 = 304.38 : x
  2. Step 2: Convert to fraction form
    476.62/715.61 = 304.38/x
  3. Step 3: Cross multiply
    476.62x = 715.61 × 304.38
  4. Step 4: Simplify right side
    476.62x = 217,818.13
  5. Step 5: Solve for x
    x = 217,818.13/476.62
  6. Step 6: Final answer
    x = 457.01

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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.