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Finding the Fourth Proportional to 275,018.68, 379,543.31 and 154,160.02

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Solution

The fourth proportional to 275,018.68, 379,543.31 and 154,160.02 is: 212,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,018.68 : 379,543.31 = 154,160.02 : x
  2. Step 2: Convert to fraction form
    275,018.68/379,543.31 = 154,160.02/x
  3. Step 3: Cross multiply
    275,018.68x = 379,543.31 × 154,160.02
  4. Step 4: Simplify right side
    275,018.68x = 58,510,404,260.47
  5. Step 5: Solve for x
    x = 58,510,404,260.47/275,018.68
  6. Step 6: Final answer
    x = 212,750.65

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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.