Home / 218,800.55-328,013.61-83,961.38

Finding the Fourth Proportional to 218,800.55, 328,013.61 and 83,961.38

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Solution

The fourth proportional to 218,800.55, 328,013.61 and 83,961.38 is: 125,870.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,800.55 : 328,013.61 = 83,961.38 : x
  2. Step 2: Convert to fraction form
    218,800.55/328,013.61 = 83,961.38/x
  3. Step 3: Cross multiply
    218,800.55x = 328,013.61 × 83,961.38
  4. Step 4: Simplify right side
    218,800.55x = 27,540,475,354.38
  5. Step 5: Solve for x
    x = 27,540,475,354.38/218,800.55
  6. Step 6: Final answer
    x = 125,870.23

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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.