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Finding the Fourth Proportional to 248,400.60, 372,486.64 and 79,889.80

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Solution

The fourth proportional to 248,400.60, 372,486.64 and 79,889.80 is: 119,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,400.60 : 372,486.64 = 79,889.80 : x
  2. Step 2: Convert to fraction form
    248,400.60/372,486.64 = 79,889.80/x
  3. Step 3: Cross multiply
    248,400.60x = 372,486.64 × 79,889.80
  4. Step 4: Simplify right side
    248,400.60x = 29,757,883,172.27
  5. Step 5: Solve for x
    x = 29,757,883,172.27/248,400.60
  6. Step 6: Final answer
    x = 119,797.95

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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.