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Finding the Fourth Proportional to 247,415.88, 371,320.56 and 89,689.44

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Solution

The fourth proportional to 247,415.88, 371,320.56 and 89,689.44 is: 134,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,415.88 : 371,320.56 = 89,689.44 : x
  2. Step 2: Convert to fraction form
    247,415.88/371,320.56 = 89,689.44/x
  3. Step 3: Cross multiply
    247,415.88x = 371,320.56 × 89,689.44
  4. Step 4: Simplify right side
    247,415.88x = 33,303,533,086.89
  5. Step 5: Solve for x
    x = 33,303,533,086.89/247,415.88
  6. Step 6: Final answer
    x = 134,605.48

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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.