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Finding the Fourth Proportional to 624.86, 862.28 and 362.86

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Solution

The fourth proportional to 624.86, 862.28 and 362.86 is: 500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.86 : 862.28 = 362.86 : x
  2. Step 2: Convert to fraction form
    624.86/862.28 = 362.86/x
  3. Step 3: Cross multiply
    624.86x = 862.28 × 362.86
  4. Step 4: Simplify right side
    624.86x = 312,886.92
  5. Step 5: Solve for x
    x = 312,886.92/624.86
  6. Step 6: Final answer
    x = 500.73

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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.