Home / 438,830.80-658,246.20-123,341.20

Finding the Fourth Proportional to 438,830.80, 658,246.20 and 123,341.20

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Solution

The fourth proportional to 438,830.80, 658,246.20 and 123,341.20 is: 185,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,830.80 : 658,246.20 = 123,341.20 : x
  2. Step 2: Convert to fraction form
    438,830.80/658,246.20 = 123,341.20/x
  3. Step 3: Cross multiply
    438,830.80x = 658,246.20 × 123,341.20
  4. Step 4: Simplify right side
    438,830.80x = 81,188,876,203.44
  5. Step 5: Solve for x
    x = 81,188,876,203.44/438,830.80
  6. Step 6: Final answer
    x = 185,011.80

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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.