Home / 347,723.20-521,609.10-137,333.80

Finding the Fourth Proportional to 347,723.20, 521,609.10 and 137,333.80

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Solution

The fourth proportional to 347,723.20, 521,609.10 and 137,333.80 is: 206,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,723.20 : 521,609.10 = 137,333.80 : x
  2. Step 2: Convert to fraction form
    347,723.20/521,609.10 = 137,333.80/x
  3. Step 3: Cross multiply
    347,723.20x = 521,609.10 × 137,333.80
  4. Step 4: Simplify right side
    347,723.20x = 71,634,559,817.58
  5. Step 5: Solve for x
    x = 71,634,559,817.58/347,723.20
  6. Step 6: Final answer
    x = 206,010.30

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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.