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Finding the Fourth Proportional to 476.31, 714.32 and 183.79

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Solution

The fourth proportional to 476.31, 714.32 and 183.79 is: 275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.31 : 714.32 = 183.79 : x
  2. Step 2: Convert to fraction form
    476.31/714.32 = 183.79/x
  3. Step 3: Cross multiply
    476.31x = 714.32 × 183.79
  4. Step 4: Simplify right side
    476.31x = 131,282.86
  5. Step 5: Solve for x
    x = 131,282.86/476.31
  6. Step 6: Final answer
    x = 275.62

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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.