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Finding the Fourth Proportional to 458.70, 688.04 and 377.29

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Solution

The fourth proportional to 458.70, 688.04 and 377.29 is: 565.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.70 : 688.04 = 377.29 : x
  2. Step 2: Convert to fraction form
    458.70/688.04 = 377.29/x
  3. Step 3: Cross multiply
    458.70x = 688.04 × 377.29
  4. Step 4: Simplify right side
    458.70x = 259,591.00
  5. Step 5: Solve for x
    x = 259,591.00/458.70
  6. Step 6: Final answer
    x = 565.93

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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.