Home / 302,906.20-454,359.30-78,266.20

Finding the Fourth Proportional to 302,906.20, 454,359.30 and 78,266.20

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Solution

The fourth proportional to 302,906.20, 454,359.30 and 78,266.20 is: 117,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,906.20 : 454,359.30 = 78,266.20 : x
  2. Step 2: Convert to fraction form
    302,906.20/454,359.30 = 78,266.20/x
  3. Step 3: Cross multiply
    302,906.20x = 454,359.30 × 78,266.20
  4. Step 4: Simplify right side
    302,906.20x = 35,560,975,845.66
  5. Step 5: Solve for x
    x = 35,560,975,845.66/302,906.20
  6. Step 6: Final answer
    x = 117,399.30

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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.