Home / 282,974.83-391,065.33-231,907.03

Finding the Fourth Proportional to 282,974.83, 391,065.33 and 231,907.03

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Solution

The fourth proportional to 282,974.83, 391,065.33 and 231,907.03 is: 320,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,974.83 : 391,065.33 = 231,907.03 : x
  2. Step 2: Convert to fraction form
    282,974.83/391,065.33 = 231,907.03/x
  3. Step 3: Cross multiply
    282,974.83x = 391,065.33 × 231,907.03
  4. Step 4: Simplify right side
    282,974.83x = 90,690,799,216.27
  5. Step 5: Solve for x
    x = 90,690,799,216.27/282,974.83
  6. Step 6: Final answer
    x = 320,490.69

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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.