Home / 218,850.32-328,152.36-69,062.70

Finding the Fourth Proportional to 218,850.32, 328,152.36 and 69,062.70

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Solution

The fourth proportional to 218,850.32, 328,152.36 and 69,062.70 is: 103,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,850.32 : 328,152.36 = 69,062.70 : x
  2. Step 2: Convert to fraction form
    218,850.32/328,152.36 = 69,062.70/x
  3. Step 3: Cross multiply
    218,850.32x = 328,152.36 × 69,062.70
  4. Step 4: Simplify right side
    218,850.32x = 22,663,087,992.97
  5. Step 5: Solve for x
    x = 22,663,087,992.97/218,850.32
  6. Step 6: Final answer
    x = 103,555.20

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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.