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Finding the Fourth Proportional to 210,062.60, 315,093.90 and 131,265.80

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Solution

The fourth proportional to 210,062.60, 315,093.90 and 131,265.80 is: 196,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,062.60 : 315,093.90 = 131,265.80 : x
  2. Step 2: Convert to fraction form
    210,062.60/315,093.90 = 131,265.80/x
  3. Step 3: Cross multiply
    210,062.60x = 315,093.90 × 131,265.80
  4. Step 4: Simplify right side
    210,062.60x = 41,361,052,858.62
  5. Step 5: Solve for x
    x = 41,361,052,858.62/210,062.60
  6. Step 6: Final answer
    x = 196,898.70

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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.