Home / 280,222.74-386,715.90-159,381.42

Finding the Fourth Proportional to 280,222.74, 386,715.90 and 159,381.42

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Solution

The fourth proportional to 280,222.74, 386,715.90 and 159,381.42 is: 219,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,222.74 : 386,715.90 = 159,381.42 : x
  2. Step 2: Convert to fraction form
    280,222.74/386,715.90 = 159,381.42/x
  3. Step 3: Cross multiply
    280,222.74x = 386,715.90 × 159,381.42
  4. Step 4: Simplify right side
    280,222.74x = 61,635,327,345.00
  5. Step 5: Solve for x
    x = 61,635,327,345.00/280,222.74
  6. Step 6: Final answer
    x = 219,951.20

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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.