Home / 347,684.20-521,396.70-137,278.60

Finding the Fourth Proportional to 347,684.20, 521,396.70 and 137,278.60

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Solution

The fourth proportional to 347,684.20, 521,396.70 and 137,278.60 is: 205,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,684.20 : 521,396.70 = 137,278.60 : x
  2. Step 2: Convert to fraction form
    347,684.20/521,396.70 = 137,278.60/x
  3. Step 3: Cross multiply
    347,684.20x = 521,396.70 × 137,278.60
  4. Step 4: Simplify right side
    347,684.20x = 71,576,609,020.62
  5. Step 5: Solve for x
    x = 71,576,609,020.62/347,684.20
  6. Step 6: Final answer
    x = 205,866.73

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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.