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Finding the Fourth Proportional to 151,806.20, 227,774.10 and 72,879.80

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Solution

The fourth proportional to 151,806.20, 227,774.10 and 72,879.80 is: 109,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,806.20 : 227,774.10 = 72,879.80 : x
  2. Step 2: Convert to fraction form
    151,806.20/227,774.10 = 72,879.80/x
  3. Step 3: Cross multiply
    151,806.20x = 227,774.10 × 72,879.80
  4. Step 4: Simplify right side
    151,806.20x = 16,600,130,853.18
  5. Step 5: Solve for x
    x = 16,600,130,853.18/151,806.20
  6. Step 6: Final answer
    x = 109,350.81

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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.