Home / 280,222.60-386,715.72-159,381.28

Finding the Fourth Proportional to 280,222.60, 386,715.72 and 159,381.28

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Solution

The fourth proportional to 280,222.60, 386,715.72 and 159,381.28 is: 219,951.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,222.60 : 386,715.72 = 159,381.28 : x
  2. Step 2: Convert to fraction form
    280,222.60/386,715.72 = 159,381.28/x
  3. Step 3: Cross multiply
    280,222.60x = 386,715.72 × 159,381.28
  4. Step 4: Simplify right side
    280,222.60x = 61,635,246,449.72
  5. Step 5: Solve for x
    x = 61,635,246,449.72/280,222.60
  6. Step 6: Final answer
    x = 219,951.02

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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.