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Finding the Fourth Proportional to 247,705.94, 371,556.93 and 147,200.53

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Solution

The fourth proportional to 247,705.94, 371,556.93 and 147,200.53 is: 220,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,705.94 : 371,556.93 = 147,200.53 : x
  2. Step 2: Convert to fraction form
    247,705.94/371,556.93 = 147,200.53/x
  3. Step 3: Cross multiply
    247,705.94x = 371,556.93 × 147,200.53
  4. Step 4: Simplify right side
    247,705.94x = 54,693,377,021.17
  5. Step 5: Solve for x
    x = 54,693,377,021.17/247,705.94
  6. Step 6: Final answer
    x = 220,799.62

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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.