Home / 268,863.60-371,029.21-148,001.78

Finding the Fourth Proportional to 268,863.60, 371,029.21 and 148,001.78

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Solution

The fourth proportional to 268,863.60, 371,029.21 and 148,001.78 is: 204,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,863.60 : 371,029.21 = 148,001.78 : x
  2. Step 2: Convert to fraction form
    268,863.60/371,029.21 = 148,001.78/x
  3. Step 3: Cross multiply
    268,863.60x = 371,029.21 × 148,001.78
  4. Step 4: Simplify right side
    268,863.60x = 54,912,984,069.56
  5. Step 5: Solve for x
    x = 54,912,984,069.56/268,863.60
  6. Step 6: Final answer
    x = 204,241.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.