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Finding the Fourth Proportional to 247,013.94, 371,016.90 and 147,368.55

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Solution

The fourth proportional to 247,013.94, 371,016.90 and 147,368.55 is: 221,348.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,013.94 : 371,016.90 = 147,368.55 : x
  2. Step 2: Convert to fraction form
    247,013.94/371,016.90 = 147,368.55/x
  3. Step 3: Cross multiply
    247,013.94x = 371,016.90 × 147,368.55
  4. Step 4: Simplify right side
    247,013.94x = 54,676,222,578.50
  5. Step 5: Solve for x
    x = 54,676,222,578.50/247,013.94
  6. Step 6: Final answer
    x = 221,348.73

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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.