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Finding the Fourth Proportional to 247,960.20, 371,530.70 and 211,096.20

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Solution

The fourth proportional to 247,960.20, 371,530.70 and 211,096.20 is: 316,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,960.20 : 371,530.70 = 211,096.20 : x
  2. Step 2: Convert to fraction form
    247,960.20/371,530.70 = 211,096.20/x
  3. Step 3: Cross multiply
    247,960.20x = 371,530.70 × 211,096.20
  4. Step 4: Simplify right side
    247,960.20x = 78,428,718,953.34
  5. Step 5: Solve for x
    x = 78,428,718,953.34/247,960.20
  6. Step 6: Final answer
    x = 316,295.59

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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.