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Finding the Fourth Proportional to 347,998.84, 522,001.34 and 137,636.80

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Solution

The fourth proportional to 347,998.84, 522,001.34 and 137,636.80 is: 206,456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,998.84 : 522,001.34 = 137,636.80 : x
  2. Step 2: Convert to fraction form
    347,998.84/522,001.34 = 137,636.80/x
  3. Step 3: Cross multiply
    347,998.84x = 522,001.34 × 137,636.80
  4. Step 4: Simplify right side
    347,998.84x = 71,846,592,556.26
  5. Step 5: Solve for x
    x = 71,846,592,556.26/347,998.84
  6. Step 6: Final answer
    x = 206,456.42

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1.5x scale

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.