Home / 438,975.25-658,463.10-123,432.15

Finding the Fourth Proportional to 438,975.25, 658,463.10 and 123,432.15

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Solution

The fourth proportional to 438,975.25, 658,463.10 and 123,432.15 is: 185,148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,975.25 : 658,463.10 = 123,432.15 : x
  2. Step 2: Convert to fraction form
    438,975.25/658,463.10 = 123,432.15/x
  3. Step 3: Cross multiply
    438,975.25x = 658,463.10 × 123,432.15
  4. Step 4: Simplify right side
    438,975.25x = 81,275,518,482.18
  5. Step 5: Solve for x
    x = 81,275,518,482.18/438,975.25
  6. Step 6: Final answer
    x = 185,148.29

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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.