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Finding the Fourth Proportional to 247,198, 370,577.10 and 89,391.40

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Solution

The fourth proportional to 247,198, 370,577.10 and 89,391.40 is: 134,007.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,198 : 370,577.10 = 89,391.40 : x
  2. Step 2: Convert to fraction form
    247,198/370,577.10 = 89,391.40/x
  3. Step 3: Cross multiply
    247,198x = 370,577.10 × 89,391.40
  4. Step 4: Simplify right side
    247,198x = 33,126,405,776.94
  5. Step 5: Solve for x
    x = 33,126,405,776.94/247,198
  6. Step 6: Final answer
    x = 134,007.58

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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.