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Finding the Fourth Proportional to 235,721.80, 353,064.30 and 204,617.80

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Solution

The fourth proportional to 235,721.80, 353,064.30 and 204,617.80 is: 306,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,721.80 : 353,064.30 = 204,617.80 : x
  2. Step 2: Convert to fraction form
    235,721.80/353,064.30 = 204,617.80/x
  3. Step 3: Cross multiply
    235,721.80x = 353,064.30 × 204,617.80
  4. Step 4: Simplify right side
    235,721.80x = 72,243,240,324.54
  5. Step 5: Solve for x
    x = 72,243,240,324.54/235,721.80
  6. Step 6: Final answer
    x = 306,476.70

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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.