Home / 347,685.20-521,916.60-269,147.60

Finding the Fourth Proportional to 347,685.20, 521,916.60 and 269,147.60

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Solution

The fourth proportional to 347,685.20, 521,916.60 and 269,147.60 is: 404,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,685.20 : 521,916.60 = 269,147.60 : x
  2. Step 2: Convert to fraction form
    347,685.20/521,916.60 = 269,147.60/x
  3. Step 3: Cross multiply
    347,685.20x = 521,916.60 × 269,147.60
  4. Step 4: Simplify right side
    347,685.20x = 140,472,600,290.16
  5. Step 5: Solve for x
    x = 140,472,600,290.16/347,685.20
  6. Step 6: Final answer
    x = 404,022.38

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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.