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Finding the Fourth Proportional to 247,206.40, 370,809.60 and 60,217.90

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Solution

The fourth proportional to 247,206.40, 370,809.60 and 60,217.90 is: 90,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,206.40 : 370,809.60 = 60,217.90 : x
  2. Step 2: Convert to fraction form
    247,206.40/370,809.60 = 60,217.90/x
  3. Step 3: Cross multiply
    247,206.40x = 370,809.60 × 60,217.90
  4. Step 4: Simplify right side
    247,206.40x = 22,329,375,411.84
  5. Step 5: Solve for x
    x = 22,329,375,411.84/247,206.40
  6. Step 6: Final answer
    x = 90,326.85

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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.