Home / 393,003.28-542,353.32-231,897.52

Finding the Fourth Proportional to 393,003.28, 542,353.32 and 231,897.52

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Solution

The fourth proportional to 393,003.28, 542,353.32 and 231,897.52 is: 320,023.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,003.28 : 542,353.32 = 231,897.52 : x
  2. Step 2: Convert to fraction form
    393,003.28/542,353.32 = 231,897.52/x
  3. Step 3: Cross multiply
    393,003.28x = 542,353.32 × 231,897.52
  4. Step 4: Simplify right side
    393,003.28x = 125,770,389,871.77
  5. Step 5: Solve for x
    x = 125,770,389,871.77/393,003.28
  6. Step 6: Final answer
    x = 320,023.77

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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.