Home / 434,540.10-651,842.55-154,020.90

Finding the Fourth Proportional to 434,540.10, 651,842.55 and 154,020.90

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Solution

The fourth proportional to 434,540.10, 651,842.55 and 154,020.90 is: 231,042.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,540.10 : 651,842.55 = 154,020.90 : x
  2. Step 2: Convert to fraction form
    434,540.10/651,842.55 = 154,020.90/x
  3. Step 3: Cross multiply
    434,540.10x = 651,842.55 × 154,020.90
  4. Step 4: Simplify right side
    434,540.10x = 100,397,376,209.30
  5. Step 5: Solve for x
    x = 100,397,376,209.30/434,540.10
  6. Step 6: Final answer
    x = 231,042.83

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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.