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Finding the Fourth Proportional to 624.92, 862.40 and 362.91

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Solution

The fourth proportional to 624.92, 862.40 and 362.91 is: 500.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.92 : 862.40 = 362.91 : x
  2. Step 2: Convert to fraction form
    624.92/862.40 = 362.91/x
  3. Step 3: Cross multiply
    624.92x = 862.40 × 362.91
  4. Step 4: Simplify right side
    624.92x = 312,971.77
  5. Step 5: Solve for x
    x = 312,971.77/624.92
  6. Step 6: Final answer
    x = 500.82

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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.