Home / 279,979.34-419,702.99-178,492.55

Finding the Fourth Proportional to 279,979.34, 419,702.99 and 178,492.55

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Solution

The fourth proportional to 279,979.34, 419,702.99 and 178,492.55 is: 267,569.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,979.34 : 419,702.99 = 178,492.55 : x
  2. Step 2: Convert to fraction form
    279,979.34/419,702.99 = 178,492.55/x
  3. Step 3: Cross multiply
    279,979.34x = 419,702.99 × 178,492.55
  4. Step 4: Simplify right side
    279,979.34x = 74,913,853,936.75
  5. Step 5: Solve for x
    x = 74,913,853,936.75/279,979.34
  6. Step 6: Final answer
    x = 267,569.23

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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.