Home / 220,718.20-331,250.10-102,404.20

Finding the Fourth Proportional to 220,718.20, 331,250.10 and 102,404.20

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Solution

The fourth proportional to 220,718.20, 331,250.10 and 102,404.20 is: 153,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,718.20 : 331,250.10 = 102,404.20 : x
  2. Step 2: Convert to fraction form
    220,718.20/331,250.10 = 102,404.20/x
  3. Step 3: Cross multiply
    220,718.20x = 331,250.10 × 102,404.20
  4. Step 4: Simplify right side
    220,718.20x = 33,921,401,490.42
  5. Step 5: Solve for x
    x = 33,921,401,490.42/220,718.20
  6. Step 6: Final answer
    x = 153,686.47

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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.