Home / 186,279.92-278,067.46-172,402.64

Finding the Fourth Proportional to 186,279.92, 278,067.46 and 172,402.64

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Solution

The fourth proportional to 186,279.92, 278,067.46 and 172,402.64 is: 257,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,279.92 : 278,067.46 = 172,402.64 : x
  2. Step 2: Convert to fraction form
    186,279.92/278,067.46 = 172,402.64/x
  3. Step 3: Cross multiply
    186,279.92x = 278,067.46 × 172,402.64
  4. Step 4: Simplify right side
    186,279.92x = 47,939,564,202.09
  5. Step 5: Solve for x
    x = 47,939,564,202.09/186,279.92
  6. Step 6: Final answer
    x = 257,352.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.