Home / 231,831.20-347,552.40-121,023.20

Finding the Fourth Proportional to 231,831.20, 347,552.40 and 121,023.20

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Solution

The fourth proportional to 231,831.20, 347,552.40 and 121,023.20 is: 181,433.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,831.20 : 347,552.40 = 121,023.20 : x
  2. Step 2: Convert to fraction form
    231,831.20/347,552.40 = 121,023.20/x
  3. Step 3: Cross multiply
    231,831.20x = 347,552.40 × 121,023.20
  4. Step 4: Simplify right side
    231,831.20x = 42,061,903,615.68
  5. Step 5: Solve for x
    x = 42,061,903,615.68/231,831.20
  6. Step 6: Final answer
    x = 181,433.32

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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.