Home / 426,562.20-639,351.15-160,152.78

Finding the Fourth Proportional to 426,562.20, 639,351.15 and 160,152.78

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Solution

The fourth proportional to 426,562.20, 639,351.15 and 160,152.78 is: 240,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,562.20 : 639,351.15 = 160,152.78 : x
  2. Step 2: Convert to fraction form
    426,562.20/639,351.15 = 160,152.78/x
  3. Step 3: Cross multiply
    426,562.20x = 639,351.15 × 160,152.78
  4. Step 4: Simplify right side
    426,562.20x = 102,393,864,068.70
  5. Step 5: Solve for x
    x = 102,393,864,068.70/426,562.20
  6. Step 6: Final answer
    x = 240,044.39

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1.5x scale

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.