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Finding the Fourth Proportional to 272,032.80, 408,049.20 and 161,440.80

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Solution

The fourth proportional to 272,032.80, 408,049.20 and 161,440.80 is: 242,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,032.80 : 408,049.20 = 161,440.80 : x
  2. Step 2: Convert to fraction form
    272,032.80/408,049.20 = 161,440.80/x
  3. Step 3: Cross multiply
    272,032.80x = 408,049.20 × 161,440.80
  4. Step 4: Simplify right side
    272,032.80x = 65,875,789,287.36
  5. Step 5: Solve for x
    x = 65,875,789,287.36/272,032.80
  6. Step 6: Final answer
    x = 242,161.20

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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.