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Finding the Fourth Proportional to 247,894.88, 371,886.96 and 90,344.48

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Solution

The fourth proportional to 247,894.88, 371,886.96 and 90,344.48 is: 135,532.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,894.88 : 371,886.96 = 90,344.48 : x
  2. Step 2: Convert to fraction form
    247,894.88/371,886.96 = 90,344.48/x
  3. Step 3: Cross multiply
    247,894.88x = 371,886.96 × 90,344.48
  4. Step 4: Simplify right side
    247,894.88x = 33,597,934,019.98
  5. Step 5: Solve for x
    x = 33,597,934,019.98/247,894.88
  6. Step 6: Final answer
    x = 135,532.99

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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.