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Finding the Fourth Proportional to 272,998.60, 409,497.90 and 178,520.20

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Solution

The fourth proportional to 272,998.60, 409,497.90 and 178,520.20 is: 267,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,998.60 : 409,497.90 = 178,520.20 : x
  2. Step 2: Convert to fraction form
    272,998.60/409,497.90 = 178,520.20/x
  3. Step 3: Cross multiply
    272,998.60x = 409,497.90 × 178,520.20
  4. Step 4: Simplify right side
    272,998.60x = 73,103,647,007.58
  5. Step 5: Solve for x
    x = 73,103,647,007.58/272,998.60
  6. Step 6: Final answer
    x = 267,780.30

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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.