Home / 391,111.52-539,738.07-240,208.52

Finding the Fourth Proportional to 391,111.52, 539,738.07 and 240,208.52

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Solution

The fourth proportional to 391,111.52, 539,738.07 and 240,208.52 is: 331,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,111.52 : 539,738.07 = 240,208.52 : x
  2. Step 2: Convert to fraction form
    391,111.52/539,738.07 = 240,208.52/x
  3. Step 3: Cross multiply
    391,111.52x = 539,738.07 × 240,208.52
  4. Step 4: Simplify right side
    391,111.52x = 129,649,679,683.15
  5. Step 5: Solve for x
    x = 129,649,679,683.15/391,111.52
  6. Step 6: Final answer
    x = 331,490.32

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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.