Home / 445,056.20-667,649.10-145,464.20

Finding the Fourth Proportional to 445,056.20, 667,649.10 and 145,464.20

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Solution

The fourth proportional to 445,056.20, 667,649.10 and 145,464.20 is: 218,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,056.20 : 667,649.10 = 145,464.20 : x
  2. Step 2: Convert to fraction form
    445,056.20/667,649.10 = 145,464.20/x
  3. Step 3: Cross multiply
    445,056.20x = 667,649.10 × 145,464.20
  4. Step 4: Simplify right side
    445,056.20x = 97,119,042,212.22
  5. Step 5: Solve for x
    x = 97,119,042,212.22/445,056.20
  6. Step 6: Final answer
    x = 218,217.48

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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.