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Finding the Fourth Proportional to 358,872.40, 538,049.40 and 201,149.20

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Solution

The fourth proportional to 358,872.40, 538,049.40 and 201,149.20 is: 301,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,872.40 : 538,049.40 = 201,149.20 : x
  2. Step 2: Convert to fraction form
    358,872.40/538,049.40 = 201,149.20/x
  3. Step 3: Cross multiply
    358,872.40x = 538,049.40 × 201,149.20
  4. Step 4: Simplify right side
    358,872.40x = 108,228,206,370.48
  5. Step 5: Solve for x
    x = 108,228,206,370.48/358,872.40
  6. Step 6: Final answer
    x = 301,578.52

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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.