Home / 275,280.96-379,857.15-154,397.10

Finding the Fourth Proportional to 275,280.96, 379,857.15 and 154,397.10

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Solution

The fourth proportional to 275,280.96, 379,857.15 and 154,397.10 is: 213,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,280.96 : 379,857.15 = 154,397.10 : x
  2. Step 2: Convert to fraction form
    275,280.96/379,857.15 = 154,397.10/x
  3. Step 3: Cross multiply
    275,280.96x = 379,857.15 × 154,397.10
  4. Step 4: Simplify right side
    275,280.96x = 58,648,842,374.27
  5. Step 5: Solve for x
    x = 58,648,842,374.27/275,280.96
  6. Step 6: Final answer
    x = 213,050.85

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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.