Home / 221,081.18-331,686.36-71,318.16

Finding the Fourth Proportional to 221,081.18, 331,686.36 and 71,318.16

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Solution

The fourth proportional to 221,081.18, 331,686.36 and 71,318.16 is: 106,998.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,081.18 : 331,686.36 = 71,318.16 : x
  2. Step 2: Convert to fraction form
    221,081.18/331,686.36 = 71,318.16/x
  3. Step 3: Cross multiply
    221,081.18x = 331,686.36 × 71,318.16
  4. Step 4: Simplify right side
    221,081.18x = 23,655,260,892.30
  5. Step 5: Solve for x
    x = 23,655,260,892.30/221,081.18
  6. Step 6: Final answer
    x = 106,998.08

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1.5x scale

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.