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Finding the Fourth Proportional to 180,574.20, 270,861.30 and 135,959.40

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Solution

The fourth proportional to 180,574.20, 270,861.30 and 135,959.40 is: 203,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,574.20 : 270,861.30 = 135,959.40 : x
  2. Step 2: Convert to fraction form
    180,574.20/270,861.30 = 135,959.40/x
  3. Step 3: Cross multiply
    180,574.20x = 270,861.30 × 135,959.40
  4. Step 4: Simplify right side
    180,574.20x = 36,826,139,831.22
  5. Step 5: Solve for x
    x = 36,826,139,831.22/180,574.20
  6. Step 6: Final answer
    x = 203,939.10

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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.