Home / 392,908.24-542,278.38-231,802.66

Finding the Fourth Proportional to 392,908.24, 542,278.38 and 231,802.66

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Solution

The fourth proportional to 392,908.24, 542,278.38 and 231,802.66 is: 319,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,908.24 : 542,278.38 = 231,802.66 : x
  2. Step 2: Convert to fraction form
    392,908.24/542,278.38 = 231,802.66/x
  3. Step 3: Cross multiply
    392,908.24x = 542,278.38 × 231,802.66
  4. Step 4: Simplify right side
    392,908.24x = 125,701,570,944.49
  5. Step 5: Solve for x
    x = 125,701,570,944.49/392,908.24
  6. Step 6: Final answer
    x = 319,926.02

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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.