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Finding the Fourth Proportional to 423,640, 635,722.62 and 246,230.56

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Solution

The fourth proportional to 423,640, 635,722.62 and 246,230.56 is: 369,498.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,640 : 635,722.62 = 246,230.56 : x
  2. Step 2: Convert to fraction form
    423,640/635,722.62 = 246,230.56/x
  3. Step 3: Cross multiply
    423,640x = 635,722.62 × 246,230.56
  4. Step 4: Simplify right side
    423,640x = 156,534,336,727.27
  5. Step 5: Solve for x
    x = 156,534,336,727.27/423,640
  6. Step 6: Final answer
    x = 369,498.48

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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.