Home / 247,426.80-371,140.20-211,997.40

Finding the Fourth Proportional to 247,426.80, 371,140.20 and 211,997.40

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Solution

The fourth proportional to 247,426.80, 371,140.20 and 211,997.40 is: 317,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,426.80 : 371,140.20 = 211,997.40 : x
  2. Step 2: Convert to fraction form
    247,426.80/371,140.20 = 211,997.40/x
  3. Step 3: Cross multiply
    247,426.80x = 371,140.20 × 211,997.40
  4. Step 4: Simplify right side
    247,426.80x = 78,680,757,435.48
  5. Step 5: Solve for x
    x = 78,680,757,435.48/247,426.80
  6. Step 6: Final answer
    x = 317,996.10

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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.