Home / 185,927.20-278,890.80-172,805.20

Finding the Fourth Proportional to 185,927.20, 278,890.80 and 172,805.20

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Solution

The fourth proportional to 185,927.20, 278,890.80 and 172,805.20 is: 259,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,927.20 : 278,890.80 = 172,805.20 : x
  2. Step 2: Convert to fraction form
    185,927.20/278,890.80 = 172,805.20/x
  3. Step 3: Cross multiply
    185,927.20x = 278,890.80 × 172,805.20
  4. Step 4: Simplify right side
    185,927.20x = 48,193,780,472.16
  5. Step 5: Solve for x
    x = 48,193,780,472.16/185,927.20
  6. Step 6: Final answer
    x = 259,207.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.