Home / 558,821.27-838,223.71-138,097.15

Finding the Fourth Proportional to 558,821.27, 838,223.71 and 138,097.15

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Solution

The fourth proportional to 558,821.27, 838,223.71 and 138,097.15 is: 207,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,821.27 : 838,223.71 = 138,097.15 : x
  2. Step 2: Convert to fraction form
    558,821.27/838,223.71 = 138,097.15/x
  3. Step 3: Cross multiply
    558,821.27x = 838,223.71 × 138,097.15
  4. Step 4: Simplify right side
    558,821.27x = 115,756,305,413.43
  5. Step 5: Solve for x
    x = 115,756,305,413.43/558,821.27
  6. Step 6: Final answer
    x = 207,143.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.