Home / 221,031.10-331,561.24-80,888.14

Finding the Fourth Proportional to 221,031.10, 331,561.24 and 80,888.14

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Solution

The fourth proportional to 221,031.10, 331,561.24 and 80,888.14 is: 121,337.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,031.10 : 331,561.24 = 80,888.14 : x
  2. Step 2: Convert to fraction form
    221,031.10/331,561.24 = 80,888.14/x
  3. Step 3: Cross multiply
    221,031.10x = 331,561.24 × 80,888.14
  4. Step 4: Simplify right side
    221,031.10x = 26,819,372,211.92
  5. Step 5: Solve for x
    x = 26,819,372,211.92/221,031.10
  6. Step 6: Final answer
    x = 121,337.55

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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.