Home / 392,835.02-542,177.55-231,729.66

Finding the Fourth Proportional to 392,835.02, 542,177.55 and 231,729.66

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Solution

The fourth proportional to 392,835.02, 542,177.55 and 231,729.66 is: 319,825.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,835.02 : 542,177.55 = 231,729.66 : x
  2. Step 2: Convert to fraction form
    392,835.02/542,177.55 = 231,729.66/x
  3. Step 3: Cross multiply
    392,835.02x = 542,177.55 × 231,729.66
  4. Step 4: Simplify right side
    392,835.02x = 125,638,619,321.13
  5. Step 5: Solve for x
    x = 125,638,619,321.13/392,835.02
  6. Step 6: Final answer
    x = 319,825.41

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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.