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Finding the Fourth Proportional to 172,039.20, 258,058.80 and 162,853.80

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Solution

The fourth proportional to 172,039.20, 258,058.80 and 162,853.80 is: 244,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,039.20 : 258,058.80 = 162,853.80 : x
  2. Step 2: Convert to fraction form
    172,039.20/258,058.80 = 162,853.80/x
  3. Step 3: Cross multiply
    172,039.20x = 258,058.80 × 162,853.80
  4. Step 4: Simplify right side
    172,039.20x = 42,025,856,203.44
  5. Step 5: Solve for x
    x = 42,025,856,203.44/172,039.20
  6. Step 6: Final answer
    x = 244,280.70

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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.