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Finding the Fourth Proportional to 300,803.60, 451,205.40 and 188,829.20

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Solution

The fourth proportional to 300,803.60, 451,205.40 and 188,829.20 is: 283,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,803.60 : 451,205.40 = 188,829.20 : x
  2. Step 2: Convert to fraction form
    300,803.60/451,205.40 = 188,829.20/x
  3. Step 3: Cross multiply
    300,803.60x = 451,205.40 × 188,829.20
  4. Step 4: Simplify right side
    300,803.60x = 85,200,754,717.68
  5. Step 5: Solve for x
    x = 85,200,754,717.68/300,803.60
  6. Step 6: Final answer
    x = 283,243.80

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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.