Home / 379,979.90-569,969.38-180,191.28

Finding the Fourth Proportional to 379,979.90, 569,969.38 and 180,191.28

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Solution

The fourth proportional to 379,979.90, 569,969.38 and 180,191.28 is: 270,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,979.90 : 569,969.38 = 180,191.28 : x
  2. Step 2: Convert to fraction form
    379,979.90/569,969.38 = 180,191.28/x
  3. Step 3: Cross multiply
    379,979.90x = 569,969.38 × 180,191.28
  4. Step 4: Simplify right side
    379,979.90x = 102,703,512,143.01
  5. Step 5: Solve for x
    x = 102,703,512,143.01/379,979.90
  6. Step 6: Final answer
    x = 270,286.70

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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.