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Finding the Fourth Proportional to 251,879.60, 377,905.80 and 111,738.80

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Solution

The fourth proportional to 251,879.60, 377,905.80 and 111,738.80 is: 167,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,879.60 : 377,905.80 = 111,738.80 : x
  2. Step 2: Convert to fraction form
    251,879.60/377,905.80 = 111,738.80/x
  3. Step 3: Cross multiply
    251,879.60x = 377,905.80 × 111,738.80
  4. Step 4: Simplify right side
    251,879.60x = 42,226,740,605.04
  5. Step 5: Solve for x
    x = 42,226,740,605.04/251,879.60
  6. Step 6: Final answer
    x = 167,646.53

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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.