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Finding the Fourth Proportional to 404,838.62, 606,593.27 and 138,453.80

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Solution

The fourth proportional to 404,838.62, 606,593.27 and 138,453.80 is: 207,453.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,838.62 : 606,593.27 = 138,453.80 : x
  2. Step 2: Convert to fraction form
    404,838.62/606,593.27 = 138,453.80/x
  3. Step 3: Cross multiply
    404,838.62x = 606,593.27 × 138,453.80
  4. Step 4: Simplify right side
    404,838.62x = 83,985,142,593.66
  5. Step 5: Solve for x
    x = 83,985,142,593.66/404,838.62
  6. Step 6: Final answer
    x = 207,453.39

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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.