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Finding the Fourth Proportional to 187,149.78, 280,794.42 and 112,323.60

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Solution

The fourth proportional to 187,149.78, 280,794.42 and 112,323.60 is: 168,527.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,149.78 : 280,794.42 = 112,323.60 : x
  2. Step 2: Convert to fraction form
    187,149.78/280,794.42 = 112,323.60/x
  3. Step 3: Cross multiply
    187,149.78x = 280,794.42 × 112,323.60
  4. Step 4: Simplify right side
    187,149.78x = 31,539,840,114.31
  5. Step 5: Solve for x
    x = 31,539,840,114.31/187,149.78
  6. Step 6: Final answer
    x = 168,527.26

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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.