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Finding the Fourth Proportional to 180,484.72, 270,672.37 and 75,279.08

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Solution

The fourth proportional to 180,484.72, 270,672.37 and 75,279.08 is: 112,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,484.72 : 270,672.37 = 75,279.08 : x
  2. Step 2: Convert to fraction form
    180,484.72/270,672.37 = 75,279.08/x
  3. Step 3: Cross multiply
    180,484.72x = 270,672.37 × 75,279.08
  4. Step 4: Simplify right side
    180,484.72x = 20,375,966,995.02
  5. Step 5: Solve for x
    x = 20,375,966,995.02/180,484.72
  6. Step 6: Final answer
    x = 112,895.80

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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.