Home / 345,029.12-517,128.96-187,251.20

Finding the Fourth Proportional to 345,029.12, 517,128.96 and 187,251.20

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Solution

The fourth proportional to 345,029.12, 517,128.96 and 187,251.20 is: 280,651.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,029.12 : 517,128.96 = 187,251.20 : x
  2. Step 2: Convert to fraction form
    345,029.12/517,128.96 = 187,251.20/x
  3. Step 3: Cross multiply
    345,029.12x = 517,128.96 × 187,251.20
  4. Step 4: Simplify right side
    345,029.12x = 96,833,018,314.75
  5. Step 5: Solve for x
    x = 96,833,018,314.75/345,029.12
  6. Step 6: Final answer
    x = 280,651.73

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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.