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Finding the Fourth Proportional to 453,605.80, 680,408.70 and 187,229.20

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Solution

The fourth proportional to 453,605.80, 680,408.70 and 187,229.20 is: 280,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,605.80 : 680,408.70 = 187,229.20 : x
  2. Step 2: Convert to fraction form
    453,605.80/680,408.70 = 187,229.20/x
  3. Step 3: Cross multiply
    453,605.80x = 680,408.70 × 187,229.20
  4. Step 4: Simplify right side
    453,605.80x = 127,392,376,574.04
  5. Step 5: Solve for x
    x = 127,392,376,574.04/453,605.80
  6. Step 6: Final answer
    x = 280,843.80

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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.