Home / 347,845.20-521,792.10-137,455.80

Finding the Fourth Proportional to 347,845.20, 521,792.10 and 137,455.80

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Solution

The fourth proportional to 347,845.20, 521,792.10 and 137,455.80 is: 206,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,845.20 : 521,792.10 = 137,455.80 : x
  2. Step 2: Convert to fraction form
    347,845.20/521,792.10 = 137,455.80/x
  3. Step 3: Cross multiply
    347,845.20x = 521,792.10 × 137,455.80
  4. Step 4: Simplify right side
    347,845.20x = 71,723,350,539.18
  5. Step 5: Solve for x
    x = 71,723,350,539.18/347,845.20
  6. Step 6: Final answer
    x = 206,193.30

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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.