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Finding the Fourth Proportional to 325,988.94, 488,888.52 and 126,264.78

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Solution

The fourth proportional to 325,988.94, 488,888.52 and 126,264.78 is: 189,360.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,988.94 : 488,888.52 = 126,264.78 : x
  2. Step 2: Convert to fraction form
    325,988.94/488,888.52 = 126,264.78/x
  3. Step 3: Cross multiply
    325,988.94x = 488,888.52 × 126,264.78
  4. Step 4: Simplify right side
    325,988.94x = 61,729,401,422.33
  5. Step 5: Solve for x
    x = 61,729,401,422.33/325,988.94
  6. Step 6: Final answer
    x = 189,360.42

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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.