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Finding the Fourth Proportional to 247,429.80, 371,287.26 and 147,832.20

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Solution

The fourth proportional to 247,429.80, 371,287.26 and 147,832.20 is: 221,833.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,429.80 : 371,287.26 = 147,832.20 : x
  2. Step 2: Convert to fraction form
    247,429.80/371,287.26 = 147,832.20/x
  3. Step 3: Cross multiply
    247,429.80x = 371,287.26 × 147,832.20
  4. Step 4: Simplify right side
    247,429.80x = 54,888,212,477.77
  5. Step 5: Solve for x
    x = 54,888,212,477.77/247,429.80
  6. Step 6: Final answer
    x = 221,833.48

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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.