Home / 481,211.20-721,881.60-165,764.80

Finding the Fourth Proportional to 481,211.20, 721,881.60 and 165,764.80

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Solution

The fourth proportional to 481,211.20, 721,881.60 and 165,764.80 is: 248,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,211.20 : 721,881.60 = 165,764.80 : x
  2. Step 2: Convert to fraction form
    481,211.20/721,881.60 = 165,764.80/x
  3. Step 3: Cross multiply
    481,211.20x = 721,881.60 × 165,764.80
  4. Step 4: Simplify right side
    481,211.20x = 119,662,559,047.68
  5. Step 5: Solve for x
    x = 119,662,559,047.68/481,211.20
  6. Step 6: Final answer
    x = 248,669.52

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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.