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Finding the Fourth Proportional to 245,388.28, 338,629.99 and 160,503.52

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Solution

The fourth proportional to 245,388.28, 338,629.99 and 160,503.52 is: 221,491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,388.28 : 338,629.99 = 160,503.52 : x
  2. Step 2: Convert to fraction form
    245,388.28/338,629.99 = 160,503.52/x
  3. Step 3: Cross multiply
    245,388.28x = 338,629.99 × 160,503.52
  4. Step 4: Simplify right side
    245,388.28x = 54,351,305,372.56
  5. Step 5: Solve for x
    x = 54,351,305,372.56/245,388.28
  6. Step 6: Final answer
    x = 221,491.04

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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.