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Finding the Fourth Proportional to 247,910.98, 371,718.62 and 98,172.76

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Solution

The fourth proportional to 247,910.98, 371,718.62 and 98,172.76 is: 147,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,910.98 : 371,718.62 = 98,172.76 : x
  2. Step 2: Convert to fraction form
    247,910.98/371,718.62 = 98,172.76/x
  3. Step 3: Cross multiply
    247,910.98x = 371,718.62 × 98,172.76
  4. Step 4: Simplify right side
    247,910.98x = 36,492,642,868.79
  5. Step 5: Solve for x
    x = 36,492,642,868.79/247,910.98
  6. Step 6: Final answer
    x = 147,200.59

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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.