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Finding the Fourth Proportional to 562.43, 775.73 and 375.86

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Solution

The fourth proportional to 562.43, 775.73 and 375.86 is: 518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.43 : 775.73 = 375.86 : x
  2. Step 2: Convert to fraction form
    562.43/775.73 = 375.86/x
  3. Step 3: Cross multiply
    562.43x = 775.73 × 375.86
  4. Step 4: Simplify right side
    562.43x = 291,560.12
  5. Step 5: Solve for x
    x = 291,560.12/562.43
  6. Step 6: Final answer
    x = 518.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.