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Finding the Fourth Proportional to 275,429.70, 413,144.55 and 98,136.90

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Solution

The fourth proportional to 275,429.70, 413,144.55 and 98,136.90 is: 147,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,429.70 : 413,144.55 = 98,136.90 : x
  2. Step 2: Convert to fraction form
    275,429.70/413,144.55 = 98,136.90/x
  3. Step 3: Cross multiply
    275,429.70x = 413,144.55 × 98,136.90
  4. Step 4: Simplify right side
    275,429.70x = 40,544,725,388.90
  5. Step 5: Solve for x
    x = 40,544,725,388.90/275,429.70
  6. Step 6: Final answer
    x = 147,205.35

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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.