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Finding the Fourth Proportional to 247,207.70, 370,811.55 and 60,219.20

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Solution

The fourth proportional to 247,207.70, 370,811.55 and 60,219.20 is: 90,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,207.70 : 370,811.55 = 60,219.20 : x
  2. Step 2: Convert to fraction form
    247,207.70/370,811.55 = 60,219.20/x
  3. Step 3: Cross multiply
    247,207.70x = 370,811.55 × 60,219.20
  4. Step 4: Simplify right side
    247,207.70x = 22,329,974,891.76
  5. Step 5: Solve for x
    x = 22,329,974,891.76/247,207.70
  6. Step 6: Final answer
    x = 90,328.80

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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.