Home / 280,570.83-387,049.02-165,793.95

Finding the Fourth Proportional to 280,570.83, 387,049.02 and 165,793.95

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Solution

The fourth proportional to 280,570.83, 387,049.02 and 165,793.95 is: 228,713.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,570.83 : 387,049.02 = 165,793.95 : x
  2. Step 2: Convert to fraction form
    280,570.83/387,049.02 = 165,793.95/x
  3. Step 3: Cross multiply
    280,570.83x = 387,049.02 × 165,793.95
  4. Step 4: Simplify right side
    280,570.83x = 64,170,385,869.43
  5. Step 5: Solve for x
    x = 64,170,385,869.43/280,570.83
  6. Step 6: Final answer
    x = 228,713.68

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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.