Home / 278,414.28-384,207.62-163,705.88

Finding the Fourth Proportional to 278,414.28, 384,207.62 and 163,705.88

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Solution

The fourth proportional to 278,414.28, 384,207.62 and 163,705.88 is: 225,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,414.28 : 384,207.62 = 163,705.88 : x
  2. Step 2: Convert to fraction form
    278,414.28/384,207.62 = 163,705.88/x
  3. Step 3: Cross multiply
    278,414.28x = 384,207.62 × 163,705.88
  4. Step 4: Simplify right side
    278,414.28x = 62,897,046,534.81
  5. Step 5: Solve for x
    x = 62,897,046,534.81/278,414.28
  6. Step 6: Final answer
    x = 225,911.71

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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.