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Finding the Fourth Proportional to 280,181.92, 386,635.04 and 159,306.08

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Solution

The fourth proportional to 280,181.92, 386,635.04 and 159,306.08 is: 219,833.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,181.92 : 386,635.04 = 159,306.08 : x
  2. Step 2: Convert to fraction form
    280,181.92/386,635.04 = 159,306.08/x
  3. Step 3: Cross multiply
    280,181.92x = 386,635.04 × 159,306.08
  4. Step 4: Simplify right side
    280,181.92x = 61,593,312,613.04
  5. Step 5: Solve for x
    x = 61,593,312,613.04/280,181.92
  6. Step 6: Final answer
    x = 219,833.29

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1.5x scale

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.