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Finding the Fourth Proportional to 303,211.60, 454,857.90 and 103,481.80

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Solution

The fourth proportional to 303,211.60, 454,857.90 and 103,481.80 is: 155,236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,211.60 : 454,857.90 = 103,481.80 : x
  2. Step 2: Convert to fraction form
    303,211.60/454,857.90 = 103,481.80/x
  3. Step 3: Cross multiply
    303,211.60x = 454,857.90 × 103,481.80
  4. Step 4: Simplify right side
    303,211.60x = 47,069,514,236.22
  5. Step 5: Solve for x
    x = 47,069,514,236.22/303,211.60
  6. Step 6: Final answer
    x = 155,236.52

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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.