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Finding the Fourth Proportional to 180,825.90, 270,979.65 and 133,068.30

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Solution

The fourth proportional to 180,825.90, 270,979.65 and 133,068.30 is: 199,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,825.90 : 270,979.65 = 133,068.30 : x
  2. Step 2: Convert to fraction form
    180,825.90/270,979.65 = 133,068.30/x
  3. Step 3: Cross multiply
    180,825.90x = 270,979.65 × 133,068.30
  4. Step 4: Simplify right side
    180,825.90x = 36,058,801,360.10
  5. Step 5: Solve for x
    x = 36,058,801,360.10/180,825.90
  6. Step 6: Final answer
    x = 199,411.71

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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.