Home / 220,974.80-331,462.20-127,403.60

Finding the Fourth Proportional to 220,974.80, 331,462.20 and 127,403.60

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Solution

The fourth proportional to 220,974.80, 331,462.20 and 127,403.60 is: 191,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,974.80 : 331,462.20 = 127,403.60 : x
  2. Step 2: Convert to fraction form
    220,974.80/331,462.20 = 127,403.60/x
  3. Step 3: Cross multiply
    220,974.80x = 331,462.20 × 127,403.60
  4. Step 4: Simplify right side
    220,974.80x = 42,229,477,543.92
  5. Step 5: Solve for x
    x = 42,229,477,543.92/220,974.80
  6. Step 6: Final answer
    x = 191,105.40

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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.