Home / 282,979.33-391,071.54-231,911.53

Finding the Fourth Proportional to 282,979.33, 391,071.54 and 231,911.53

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Solution

The fourth proportional to 282,979.33, 391,071.54 and 231,911.53 is: 320,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,979.33 : 391,071.54 = 231,911.53 : x
  2. Step 2: Convert to fraction form
    282,979.33/391,071.54 = 231,911.53/x
  3. Step 3: Cross multiply
    282,979.33x = 391,071.54 × 231,911.53
  4. Step 4: Simplify right side
    282,979.33x = 90,693,999,180.86
  5. Step 5: Solve for x
    x = 90,693,999,180.86/282,979.33
  6. Step 6: Final answer
    x = 320,496.90

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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.