Home / 403,979.88-605,985.12-151,233.78

Finding the Fourth Proportional to 403,979.88, 605,985.12 and 151,233.78

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Solution

The fourth proportional to 403,979.88, 605,985.12 and 151,233.78 is: 226,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,979.88 : 605,985.12 = 151,233.78 : x
  2. Step 2: Convert to fraction form
    403,979.88/605,985.12 = 151,233.78/x
  3. Step 3: Cross multiply
    403,979.88x = 605,985.12 × 151,233.78
  4. Step 4: Simplify right side
    403,979.88x = 91,645,420,321.35
  5. Step 5: Solve for x
    x = 91,645,420,321.35/403,979.88
  6. Step 6: Final answer
    x = 226,856.40

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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.