Home / 1,216.05-1,823.75-338.34

Finding the Fourth Proportional to 1,216.05, 1,823.75 and 338.34

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Solution

The fourth proportional to 1,216.05, 1,823.75 and 338.34 is: 507.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.05 : 1,823.75 = 338.34 : x
  2. Step 2: Convert to fraction form
    1,216.05/1,823.75 = 338.34/x
  3. Step 3: Cross multiply
    1,216.05x = 1,823.75 × 338.34
  4. Step 4: Simplify right side
    1,216.05x = 617,045.88
  5. Step 5: Solve for x
    x = 617,045.88/1,216.05
  6. Step 6: Final answer
    x = 507.42

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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.