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Finding the Fourth Proportional to 199,632.40, 299,448.60 and 132,272.80

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Solution

The fourth proportional to 199,632.40, 299,448.60 and 132,272.80 is: 198,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,632.40 : 299,448.60 = 132,272.80 : x
  2. Step 2: Convert to fraction form
    199,632.40/299,448.60 = 132,272.80/x
  3. Step 3: Cross multiply
    199,632.40x = 299,448.60 × 132,272.80
  4. Step 4: Simplify right side
    199,632.40x = 39,608,904,778.08
  5. Step 5: Solve for x
    x = 39,608,904,778.08/199,632.40
  6. Step 6: Final answer
    x = 198,409.20

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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.