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Finding the Fourth Proportional to 342,524.77, 472,685.05 and 189,573.48

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Solution

The fourth proportional to 342,524.77, 472,685.05 and 189,573.48 is: 261,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,524.77 : 472,685.05 = 189,573.48 : x
  2. Step 2: Convert to fraction form
    342,524.77/472,685.05 = 189,573.48/x
  3. Step 3: Cross multiply
    342,524.77x = 472,685.05 × 189,573.48
  4. Step 4: Simplify right side
    342,524.77x = 89,608,549,872.47
  5. Step 5: Solve for x
    x = 89,608,549,872.47/342,524.77
  6. Step 6: Final answer
    x = 261,611.88

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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.