Home / 439,821.80-659,214.30-187,101.80

Finding the Fourth Proportional to 439,821.80, 659,214.30 and 187,101.80

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Solution

The fourth proportional to 439,821.80, 659,214.30 and 187,101.80 is: 280,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,821.80 : 659,214.30 = 187,101.80 : x
  2. Step 2: Convert to fraction form
    439,821.80/659,214.30 = 187,101.80/x
  3. Step 3: Cross multiply
    439,821.80x = 659,214.30 × 187,101.80
  4. Step 4: Simplify right side
    439,821.80x = 123,340,182,115.74
  5. Step 5: Solve for x
    x = 123,340,182,115.74/439,821.80
  6. Step 6: Final answer
    x = 280,432.17

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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.