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Finding the Fourth Proportional to 250,029.42, 345,089.79 and 189,494.48

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Solution

The fourth proportional to 250,029.42, 345,089.79 and 189,494.48 is: 261,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,029.42 : 345,089.79 = 189,494.48 : x
  2. Step 2: Convert to fraction form
    250,029.42/345,089.79 = 189,494.48/x
  3. Step 3: Cross multiply
    250,029.42x = 345,089.79 × 189,494.48
  4. Step 4: Simplify right side
    250,029.42x = 65,392,608,972.90
  5. Step 5: Solve for x
    x = 65,392,608,972.90/250,029.42
  6. Step 6: Final answer
    x = 261,539.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.