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Finding the Fourth Proportional to 426,370.91, 639,218.97 and 160,101.77

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Solution

The fourth proportional to 426,370.91, 639,218.97 and 160,101.77 is: 240,025.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,370.91 : 639,218.97 = 160,101.77 : x
  2. Step 2: Convert to fraction form
    426,370.91/639,218.97 = 160,101.77/x
  3. Step 3: Cross multiply
    426,370.91x = 639,218.97 × 160,101.77
  4. Step 4: Simplify right side
    426,370.91x = 102,340,088,514.58
  5. Step 5: Solve for x
    x = 102,340,088,514.58/426,370.91
  6. Step 6: Final answer
    x = 240,025.96

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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.