Home / 426,117.60-639,010.26-159,732.75

Finding the Fourth Proportional to 426,117.60, 639,010.26 and 159,732.75

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Solution

The fourth proportional to 426,117.60, 639,010.26 and 159,732.75 is: 239,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,117.60 : 639,010.26 = 159,732.75 : x
  2. Step 2: Convert to fraction form
    426,117.60/639,010.26 = 159,732.75/x
  3. Step 3: Cross multiply
    426,117.60x = 639,010.26 × 159,732.75
  4. Step 4: Simplify right side
    426,117.60x = 102,070,866,108.02
  5. Step 5: Solve for x
    x = 102,070,866,108.02/426,117.60
  6. Step 6: Final answer
    x = 239,536.85

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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.