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Finding the Fourth Proportional to 436,287.20, 654,301.20 and 169,894.40

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Solution

The fourth proportional to 436,287.20, 654,301.20 and 169,894.40 is: 254,791.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,287.20 : 654,301.20 = 169,894.40 : x
  2. Step 2: Convert to fraction form
    436,287.20/654,301.20 = 169,894.40/x
  3. Step 3: Cross multiply
    436,287.20x = 654,301.20 × 169,894.40
  4. Step 4: Simplify right side
    436,287.20x = 111,162,109,793.28
  5. Step 5: Solve for x
    x = 111,162,109,793.28/436,287.20
  6. Step 6: Final answer
    x = 254,791.13

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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.