Home / 218,838.57-328,292.85-92,480.04

Finding the Fourth Proportional to 218,838.57, 328,292.85 and 92,480.04

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Solution

The fourth proportional to 218,838.57, 328,292.85 and 92,480.04 is: 138,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,838.57 : 328,292.85 = 92,480.04 : x
  2. Step 2: Convert to fraction form
    218,838.57/328,292.85 = 92,480.04/x
  3. Step 3: Cross multiply
    218,838.57x = 328,292.85 × 92,480.04
  4. Step 4: Simplify right side
    218,838.57x = 30,360,535,899.71
  5. Step 5: Solve for x
    x = 30,360,535,899.71/218,838.57
  6. Step 6: Final answer
    x = 138,734.85

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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.