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Finding the Fourth Proportional to 240,641.78, 360,841.17 and 140,831.96

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Solution

The fourth proportional to 240,641.78, 360,841.17 and 140,831.96 is: 211,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,641.78 : 360,841.17 = 140,831.96 : x
  2. Step 2: Convert to fraction form
    240,641.78/360,841.17 = 140,831.96/x
  3. Step 3: Cross multiply
    240,641.78x = 360,841.17 × 140,831.96
  4. Step 4: Simplify right side
    240,641.78x = 50,817,969,219.79
  5. Step 5: Solve for x
    x = 50,817,969,219.79/240,641.78
  6. Step 6: Final answer
    x = 211,176.83

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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.