Home / 221,040.95-331,626.11-71,278.22

Finding the Fourth Proportional to 221,040.95, 331,626.11 and 71,278.22

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Solution

The fourth proportional to 221,040.95, 331,626.11 and 71,278.22 is: 106,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,040.95 : 331,626.11 = 71,278.22 : x
  2. Step 2: Convert to fraction form
    221,040.95/331,626.11 = 71,278.22/x
  3. Step 3: Cross multiply
    221,040.95x = 331,626.11 × 71,278.22
  4. Step 4: Simplify right side
    221,040.95x = 23,637,719,299.00
  5. Step 5: Solve for x
    x = 23,637,719,299.00/221,040.95
  6. Step 6: Final answer
    x = 106,938.19

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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.