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Finding the Fourth Proportional to 199,360.80, 299,041.20 and 125,632.80

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Solution

The fourth proportional to 199,360.80, 299,041.20 and 125,632.80 is: 188,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,360.80 : 299,041.20 = 125,632.80 : x
  2. Step 2: Convert to fraction form
    199,360.80/299,041.20 = 125,632.80/x
  3. Step 3: Cross multiply
    199,360.80x = 299,041.20 × 125,632.80
  4. Step 4: Simplify right side
    199,360.80x = 37,569,383,271.36
  5. Step 5: Solve for x
    x = 37,569,383,271.36/199,360.80
  6. Step 6: Final answer
    x = 188,449.20

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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.