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Finding the Fourth Proportional to 503,452.12, 755,203.07 and 143,676

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Solution

The fourth proportional to 503,452.12, 755,203.07 and 143,676 is: 215,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,452.12 : 755,203.07 = 143,676 : x
  2. Step 2: Convert to fraction form
    503,452.12/755,203.07 = 143,676/x
  3. Step 3: Cross multiply
    503,452.12x = 755,203.07 × 143,676
  4. Step 4: Simplify right side
    503,452.12x = 108,504,556,644.51
  5. Step 5: Solve for x
    x = 108,504,556,644.51/503,452.12
  6. Step 6: Final answer
    x = 215,521.10

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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.