Home / 221,247.40-331,919.70-71,462.20

Finding the Fourth Proportional to 221,247.40, 331,919.70 and 71,462.20

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Solution

The fourth proportional to 221,247.40, 331,919.70 and 71,462.20 is: 107,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,247.40 : 331,919.70 = 71,462.20 : x
  2. Step 2: Convert to fraction form
    221,247.40/331,919.70 = 71,462.20/x
  3. Step 3: Cross multiply
    221,247.40x = 331,919.70 × 71,462.20
  4. Step 4: Simplify right side
    221,247.40x = 23,719,711,985.34
  5. Step 5: Solve for x
    x = 23,719,711,985.34/221,247.40
  6. Step 6: Final answer
    x = 107,209.00

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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.