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Finding the Fourth Proportional to 440,518.26, 660,879.27 and 156,193.74

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Solution

The fourth proportional to 440,518.26, 660,879.27 and 156,193.74 is: 234,326.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,518.26 : 660,879.27 = 156,193.74 : x
  2. Step 2: Convert to fraction form
    440,518.26/660,879.27 = 156,193.74/x
  3. Step 3: Cross multiply
    440,518.26x = 660,879.27 × 156,193.74
  4. Step 4: Simplify right side
    440,518.26x = 103,225,204,869.77
  5. Step 5: Solve for x
    x = 103,225,204,869.77/440,518.26
  6. Step 6: Final answer
    x = 234,326.73

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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.