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Finding the Fourth Proportional to 403,844.77, 605,650.47 and 137,599.39

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Solution

The fourth proportional to 403,844.77, 605,650.47 and 137,599.39 is: 206,359.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,844.77 : 605,650.47 = 137,599.39 : x
  2. Step 2: Convert to fraction form
    403,844.77/605,650.47 = 137,599.39/x
  3. Step 3: Cross multiply
    403,844.77x = 605,650.47 × 137,599.39
  4. Step 4: Simplify right side
    403,844.77x = 83,337,135,225.21
  5. Step 5: Solve for x
    x = 83,337,135,225.21/403,844.77
  6. Step 6: Final answer
    x = 206,359.33

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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.