Home / 279,977.13-419,699.64-178,490.31

Finding the Fourth Proportional to 279,977.13, 419,699.64 and 178,490.31

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Solution

The fourth proportional to 279,977.13, 419,699.64 and 178,490.31 is: 267,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,977.13 : 419,699.64 = 178,490.31 : x
  2. Step 2: Convert to fraction form
    279,977.13/419,699.64 = 178,490.31/x
  3. Step 3: Cross multiply
    279,977.13x = 419,699.64 × 178,490.31
  4. Step 4: Simplify right side
    279,977.13x = 74,912,318,850.49
  5. Step 5: Solve for x
    x = 74,912,318,850.49/279,977.13
  6. Step 6: Final answer
    x = 267,565.85

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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.