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Finding the Fourth Proportional to 172,480.20, 258,720.30 and 151,744.20

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Solution

The fourth proportional to 172,480.20, 258,720.30 and 151,744.20 is: 227,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,480.20 : 258,720.30 = 151,744.20 : x
  2. Step 2: Convert to fraction form
    172,480.20/258,720.30 = 151,744.20/x
  3. Step 3: Cross multiply
    172,480.20x = 258,720.30 × 151,744.20
  4. Step 4: Simplify right side
    172,480.20x = 39,259,304,947.26
  5. Step 5: Solve for x
    x = 39,259,304,947.26/172,480.20
  6. Step 6: Final answer
    x = 227,616.30

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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.