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Finding the Fourth Proportional to 240,557.25, 360,916.04 and 80,648.99

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Solution

The fourth proportional to 240,557.25, 360,916.04 and 80,648.99 is: 121,000.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,557.25 : 360,916.04 = 80,648.99 : x
  2. Step 2: Convert to fraction form
    240,557.25/360,916.04 = 80,648.99/x
  3. Step 3: Cross multiply
    240,557.25x = 360,916.04 × 80,648.99
  4. Step 4: Simplify right side
    240,557.25x = 29,107,514,100.80
  5. Step 5: Solve for x
    x = 29,107,514,100.80/240,557.25
  6. Step 6: Final answer
    x = 121,000.36

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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.