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Finding the Fourth Proportional to 404,416.44, 606,695.97 and 138,114.54

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Solution

The fourth proportional to 404,416.44, 606,695.97 and 138,114.54 is: 207,196.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,416.44 : 606,695.97 = 138,114.54 : x
  2. Step 2: Convert to fraction form
    404,416.44/606,695.97 = 138,114.54/x
  3. Step 3: Cross multiply
    404,416.44x = 606,695.97 × 138,114.54
  4. Step 4: Simplify right side
    404,416.44x = 83,793,534,816.40
  5. Step 5: Solve for x
    x = 83,793,534,816.40/404,416.44
  6. Step 6: Final answer
    x = 207,196.16

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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.