Home / 318,949.20-478,257.68-150,424.28

Finding the Fourth Proportional to 318,949.20, 478,257.68 and 150,424.28

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Solution

The fourth proportional to 318,949.20, 478,257.68 and 150,424.28 is: 225,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,949.20 : 478,257.68 = 150,424.28 : x
  2. Step 2: Convert to fraction form
    318,949.20/478,257.68 = 150,424.28/x
  3. Step 3: Cross multiply
    318,949.20x = 478,257.68 × 150,424.28
  4. Step 4: Simplify right side
    318,949.20x = 71,941,564,777.18
  5. Step 5: Solve for x
    x = 71,941,564,777.18/318,949.20
  6. Step 6: Final answer
    x = 225,558.07

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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.