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Finding the Fourth Proportional to 180,478.51, 270,983.87 and 100,672.39

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Solution

The fourth proportional to 180,478.51, 270,983.87 and 100,672.39 is: 151,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,478.51 : 270,983.87 = 100,672.39 : x
  2. Step 2: Convert to fraction form
    180,478.51/270,983.87 = 100,672.39/x
  3. Step 3: Cross multiply
    180,478.51x = 270,983.87 × 100,672.39
  4. Step 4: Simplify right side
    180,478.51x = 27,280,594,057.24
  5. Step 5: Solve for x
    x = 27,280,594,057.24/180,478.51
  6. Step 6: Final answer
    x = 151,157.02

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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.