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Finding the Fourth Proportional to 247,379.87, 371,068.90 and 89,571.42

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Solution

The fourth proportional to 247,379.87, 371,068.90 and 89,571.42 is: 134,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,379.87 : 371,068.90 = 89,571.42 : x
  2. Step 2: Convert to fraction form
    247,379.87/371,068.90 = 89,571.42/x
  3. Step 3: Cross multiply
    247,379.87x = 371,068.90 × 89,571.42
  4. Step 4: Simplify right side
    247,379.87x = 33,237,168,066.91
  5. Step 5: Solve for x
    x = 33,237,168,066.91/247,379.87
  6. Step 6: Final answer
    x = 134,356.80

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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.