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Finding the Fourth Proportional to 247,480.80, 371,261.40 and 76,662.62

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Solution

The fourth proportional to 247,480.80, 371,261.40 and 76,662.62 is: 115,006.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,480.80 : 371,261.40 = 76,662.62 : x
  2. Step 2: Convert to fraction form
    247,480.80/371,261.40 = 76,662.62/x
  3. Step 3: Cross multiply
    247,480.80x = 371,261.40 × 76,662.62
  4. Step 4: Simplify right side
    247,480.80x = 28,461,871,628.87
  5. Step 5: Solve for x
    x = 28,461,871,628.87/247,480.80
  6. Step 6: Final answer
    x = 115,006.39

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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.