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Finding the Fourth Proportional to 274,551.98, 378,870.66 and 159,833.91

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Solution

The fourth proportional to 274,551.98, 378,870.66 and 159,833.91 is: 220,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,551.98 : 378,870.66 = 159,833.91 : x
  2. Step 2: Convert to fraction form
    274,551.98/378,870.66 = 159,833.91/x
  3. Step 3: Cross multiply
    274,551.98x = 378,870.66 × 159,833.91
  4. Step 4: Simplify right side
    274,551.98x = 60,556,378,972.08
  5. Step 5: Solve for x
    x = 60,556,378,972.08/274,551.98
  6. Step 6: Final answer
    x = 220,564.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.