Home / 218,800.95-328,172.27-61,016.19

Finding the Fourth Proportional to 218,800.95, 328,172.27 and 61,016.19

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Solution

The fourth proportional to 218,800.95, 328,172.27 and 61,016.19 is: 91,516.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,800.95 : 328,172.27 = 61,016.19 : x
  2. Step 2: Convert to fraction form
    218,800.95/328,172.27 = 61,016.19/x
  3. Step 3: Cross multiply
    218,800.95x = 328,172.27 × 61,016.19
  4. Step 4: Simplify right side
    218,800.95x = 20,023,821,273.97
  5. Step 5: Solve for x
    x = 20,023,821,273.97/218,800.95
  6. Step 6: Final answer
    x = 91,516.15

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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.