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Finding the Fourth Proportional to 179,452.80, 269,438.40 and 135,388.80

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Solution

The fourth proportional to 179,452.80, 269,438.40 and 135,388.80 is: 203,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,452.80 : 269,438.40 = 135,388.80 : x
  2. Step 2: Convert to fraction form
    179,452.80/269,438.40 = 135,388.80/x
  3. Step 3: Cross multiply
    179,452.80x = 269,438.40 × 135,388.80
  4. Step 4: Simplify right side
    179,452.80x = 36,478,941,649.92
  5. Step 5: Solve for x
    x = 36,478,941,649.92/179,452.80
  6. Step 6: Final answer
    x = 203,278.75

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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.