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Finding the Fourth Proportional to 169,481.80, 254,481.90 and 99,497.80

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Solution

The fourth proportional to 169,481.80, 254,481.90 and 99,497.80 is: 149,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,481.80 : 254,481.90 = 99,497.80 : x
  2. Step 2: Convert to fraction form
    169,481.80/254,481.90 = 99,497.80/x
  3. Step 3: Cross multiply
    169,481.80x = 254,481.90 × 99,497.80
  4. Step 4: Simplify right side
    169,481.80x = 25,320,389,189.82
  5. Step 5: Solve for x
    x = 25,320,389,189.82/169,481.80
  6. Step 6: Final answer
    x = 149,398.87

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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.