Home / 394,999.04-545,077.76-216,116.48

Finding the Fourth Proportional to 394,999.04, 545,077.76 and 216,116.48

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Solution

The fourth proportional to 394,999.04, 545,077.76 and 216,116.48 is: 298,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,999.04 : 545,077.76 = 216,116.48 : x
  2. Step 2: Convert to fraction form
    394,999.04/545,077.76 = 216,116.48/x
  3. Step 3: Cross multiply
    394,999.04x = 545,077.76 × 216,116.48
  4. Step 4: Simplify right side
    394,999.04x = 117,800,286,817.49
  5. Step 5: Solve for x
    x = 117,800,286,817.49/394,999.04
  6. Step 6: Final answer
    x = 298,229.30

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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.