Home / 391,226.07-539,862.22-238,247.31

Finding the Fourth Proportional to 391,226.07, 539,862.22 and 238,247.31

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Solution

The fourth proportional to 391,226.07, 539,862.22 and 238,247.31 is: 328,763.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,226.07 : 539,862.22 = 238,247.31 : x
  2. Step 2: Convert to fraction form
    391,226.07/539,862.22 = 238,247.31/x
  3. Step 3: Cross multiply
    391,226.07x = 539,862.22 × 238,247.31
  4. Step 4: Simplify right side
    391,226.07x = 128,620,721,685.63
  5. Step 5: Solve for x
    x = 128,620,721,685.63/391,226.07
  6. Step 6: Final answer
    x = 328,763.17

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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.