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Finding the Fourth Proportional to 207,191.44, 285,820.68 and 130,805.20

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Solution

The fourth proportional to 207,191.44, 285,820.68 and 130,805.20 is: 180,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,191.44 : 285,820.68 = 130,805.20 : x
  2. Step 2: Convert to fraction form
    207,191.44/285,820.68 = 130,805.20/x
  3. Step 3: Cross multiply
    207,191.44x = 285,820.68 × 130,805.20
  4. Step 4: Simplify right side
    207,191.44x = 37,386,831,211.54
  5. Step 5: Solve for x
    x = 37,386,831,211.54/207,191.44
  6. Step 6: Final answer
    x = 180,445.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.