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Finding the Fourth Proportional to 239,831.14, 330,958.29 and 132,398.86

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Solution

The fourth proportional to 239,831.14, 330,958.29 and 132,398.86 is: 182,705.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,831.14 : 330,958.29 = 132,398.86 : x
  2. Step 2: Convert to fraction form
    239,831.14/330,958.29 = 132,398.86/x
  3. Step 3: Cross multiply
    239,831.14x = 330,958.29 × 132,398.86
  4. Step 4: Simplify right side
    239,831.14x = 43,818,500,303.55
  5. Step 5: Solve for x
    x = 43,818,500,303.55/239,831.14
  6. Step 6: Final answer
    x = 182,705.63

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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.