Home / 240,721.14-361,157.28-144,768.78

Finding the Fourth Proportional to 240,721.14, 361,157.28 and 144,768.78

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Solution

The fourth proportional to 240,721.14, 361,157.28 and 144,768.78 is: 217,198.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,721.14 : 361,157.28 = 144,768.78 : x
  2. Step 2: Convert to fraction form
    240,721.14/361,157.28 = 144,768.78/x
  3. Step 3: Cross multiply
    240,721.14x = 361,157.28 × 144,768.78
  4. Step 4: Simplify right side
    240,721.14x = 52,284,298,813.72
  5. Step 5: Solve for x
    x = 52,284,298,813.72/240,721.14
  6. Step 6: Final answer
    x = 217,198.62

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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.