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Finding the Fourth Proportional to 275,015.70, 412,851.60 and 155,168.10

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Solution

The fourth proportional to 275,015.70, 412,851.60 and 155,168.10 is: 232,937.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,015.70 : 412,851.60 = 155,168.10 : x
  2. Step 2: Convert to fraction form
    275,015.70/412,851.60 = 155,168.10/x
  3. Step 3: Cross multiply
    275,015.70x = 412,851.60 × 155,168.10
  4. Step 4: Simplify right side
    275,015.70x = 64,061,398,353.96
  5. Step 5: Solve for x
    x = 64,061,398,353.96/275,015.70
  6. Step 6: Final answer
    x = 232,937.24

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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.