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Finding the Fourth Proportional to 193,840.80, 290,674.80 and 75,472.80

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Solution

The fourth proportional to 193,840.80, 290,674.80 and 75,472.80 is: 113,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,840.80 : 290,674.80 = 75,472.80 : x
  2. Step 2: Convert to fraction form
    193,840.80/290,674.80 = 75,472.80/x
  3. Step 3: Cross multiply
    193,840.80x = 290,674.80 × 75,472.80
  4. Step 4: Simplify right side
    193,840.80x = 21,938,041,045.44
  5. Step 5: Solve for x
    x = 21,938,041,045.44/193,840.80
  6. Step 6: Final answer
    x = 113,175.56

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1.5x scale

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.