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Finding the Fourth Proportional to 253,831.68, 350,287.74 and 140,654.43

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Solution

The fourth proportional to 253,831.68, 350,287.74 and 140,654.43 is: 194,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,831.68 : 350,287.74 = 140,654.43 : x
  2. Step 2: Convert to fraction form
    253,831.68/350,287.74 = 140,654.43/x
  3. Step 3: Cross multiply
    253,831.68x = 350,287.74 × 140,654.43
  4. Step 4: Simplify right side
    253,831.68x = 49,269,522,405.69
  5. Step 5: Solve for x
    x = 49,269,522,405.69/253,831.68
  6. Step 6: Final answer
    x = 194,103.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.