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Finding the Fourth Proportional to 193,669.60, 290,607.60 and 75,344.80

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Solution

The fourth proportional to 193,669.60, 290,607.60 and 75,344.80 is: 113,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,669.60 : 290,607.60 = 75,344.80 : x
  2. Step 2: Convert to fraction form
    193,669.60/290,607.60 = 75,344.80/x
  3. Step 3: Cross multiply
    193,669.60x = 290,607.60 × 75,344.80
  4. Step 4: Simplify right side
    193,669.60x = 21,895,771,500.48
  5. Step 5: Solve for x
    x = 21,895,771,500.48/193,669.60
  6. Step 6: Final answer
    x = 113,057.35

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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.