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Finding the Fourth Proportional to 272,064.80, 408,097.20 and 161,472.80

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Solution

The fourth proportional to 272,064.80, 408,097.20 and 161,472.80 is: 242,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,064.80 : 408,097.20 = 161,472.80 : x
  2. Step 2: Convert to fraction form
    272,064.80/408,097.20 = 161,472.80/x
  3. Step 3: Cross multiply
    272,064.80x = 408,097.20 × 161,472.80
  4. Step 4: Simplify right side
    272,064.80x = 65,896,597,556.16
  5. Step 5: Solve for x
    x = 65,896,597,556.16/272,064.80
  6. Step 6: Final answer
    x = 242,209.20

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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.