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Finding the Fourth Proportional to 312,439.92, 468,562.88 and 112,734.30

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Solution

The fourth proportional to 312,439.92, 468,562.88 and 112,734.30 is: 169,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,439.92 : 468,562.88 = 112,734.30 : x
  2. Step 2: Convert to fraction form
    312,439.92/468,562.88 = 112,734.30/x
  3. Step 3: Cross multiply
    312,439.92x = 468,562.88 × 112,734.30
  4. Step 4: Simplify right side
    312,439.92x = 52,823,108,282.78
  5. Step 5: Solve for x
    x = 52,823,108,282.78/312,439.92
  6. Step 6: Final answer
    x = 169,066.45

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1.5x scale

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.