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Finding the Fourth Proportional to 436,256.70, 654,255.45 and 169,863.90

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Solution

The fourth proportional to 436,256.70, 654,255.45 and 169,863.90 is: 254,745.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,256.70 : 654,255.45 = 169,863.90 : x
  2. Step 2: Convert to fraction form
    436,256.70/654,255.45 = 169,863.90/x
  3. Step 3: Cross multiply
    436,256.70x = 654,255.45 × 169,863.90
  4. Step 4: Simplify right side
    436,256.70x = 111,134,382,333.26
  5. Step 5: Solve for x
    x = 111,134,382,333.26/436,256.70
  6. Step 6: Final answer
    x = 254,745.39

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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.