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Finding the Fourth Proportional to 404,102.86, 606,132.32 and 123,620.11

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Solution

The fourth proportional to 404,102.86, 606,132.32 and 123,620.11 is: 185,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,102.86 : 606,132.32 = 123,620.11 : x
  2. Step 2: Convert to fraction form
    404,102.86/606,132.32 = 123,620.11/x
  3. Step 3: Cross multiply
    404,102.86x = 606,132.32 × 123,620.11
  4. Step 4: Simplify right side
    404,102.86x = 74,930,141,939.52
  5. Step 5: Solve for x
    x = 74,930,141,939.52/404,102.86
  6. Step 6: Final answer
    x = 185,423.44

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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.