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Finding the Fourth Proportional to 490,169.18, 735,254.37 and 153,211.56

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Solution

The fourth proportional to 490,169.18, 735,254.37 and 153,211.56 is: 229,817.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,169.18 : 735,254.37 = 153,211.56 : x
  2. Step 2: Convert to fraction form
    490,169.18/735,254.37 = 153,211.56/x
  3. Step 3: Cross multiply
    490,169.18x = 735,254.37 × 153,211.56
  4. Step 4: Simplify right side
    490,169.18x = 112,649,469,024.52
  5. Step 5: Solve for x
    x = 112,649,469,024.52/490,169.18
  6. Step 6: Final answer
    x = 229,817.53

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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.