Home / 347,109.18-479,014.19-203,871.61

Finding the Fourth Proportional to 347,109.18, 479,014.19 and 203,871.61

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Solution

The fourth proportional to 347,109.18, 479,014.19 and 203,871.61 is: 281,344.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,109.18 : 479,014.19 = 203,871.61 : x
  2. Step 2: Convert to fraction form
    347,109.18/479,014.19 = 203,871.61/x
  3. Step 3: Cross multiply
    347,109.18x = 479,014.19 × 203,871.61
  4. Step 4: Simplify right side
    347,109.18x = 97,657,394,128.15
  5. Step 5: Solve for x
    x = 97,657,394,128.15/347,109.18
  6. Step 6: Final answer
    x = 281,344.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.