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Finding the Fourth Proportional to 247,138.74, 370,736.91 and 89,441.46

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Solution

The fourth proportional to 247,138.74, 370,736.91 and 89,441.46 is: 134,172.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,138.74 : 370,736.91 = 89,441.46 : x
  2. Step 2: Convert to fraction form
    247,138.74/370,736.91 = 89,441.46/x
  3. Step 3: Cross multiply
    247,138.74x = 370,736.91 × 89,441.46
  4. Step 4: Simplify right side
    247,138.74x = 33,159,250,506.29
  5. Step 5: Solve for x
    x = 33,159,250,506.29/247,138.74
  6. Step 6: Final answer
    x = 134,172.61

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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.