Home / 320,007.20-479,626.80-132,922.40

Finding the Fourth Proportional to 320,007.20, 479,626.80 and 132,922.40

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Solution

The fourth proportional to 320,007.20, 479,626.80 and 132,922.40 is: 199,224.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,007.20 : 479,626.80 = 132,922.40 : x
  2. Step 2: Convert to fraction form
    320,007.20/479,626.80 = 132,922.40/x
  3. Step 3: Cross multiply
    320,007.20x = 479,626.80 × 132,922.40
  4. Step 4: Simplify right side
    320,007.20x = 63,753,145,360.32
  5. Step 5: Solve for x
    x = 63,753,145,360.32/320,007.20
  6. Step 6: Final answer
    x = 199,224.10

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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.