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Finding the Fourth Proportional to 485,152.31, 726,765.85 and 228,633.62

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Solution

The fourth proportional to 485,152.31, 726,765.85 and 228,633.62 is: 342,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,152.31 : 726,765.85 = 228,633.62 : x
  2. Step 2: Convert to fraction form
    485,152.31/726,765.85 = 228,633.62/x
  3. Step 3: Cross multiply
    485,152.31x = 726,765.85 × 228,633.62
  4. Step 4: Simplify right side
    485,152.31x = 166,163,103,829.84
  5. Step 5: Solve for x
    x = 166,163,103,829.84/485,152.31
  6. Step 6: Final answer
    x = 342,496.78

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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.