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Finding the Fourth Proportional to 180,509.38, 270,939.03 and 87,080.74

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Solution

The fourth proportional to 180,509.38, 270,939.03 and 87,080.74 is: 130,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,509.38 : 270,939.03 = 87,080.74 : x
  2. Step 2: Convert to fraction form
    180,509.38/270,939.03 = 87,080.74/x
  3. Step 3: Cross multiply
    180,509.38x = 270,939.03 × 87,080.74
  4. Step 4: Simplify right side
    180,509.38x = 23,593,571,227.28
  5. Step 5: Solve for x
    x = 23,593,571,227.28/180,509.38
  6. Step 6: Final answer
    x = 130,705.51

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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.