Home / 1,216.28-1,824.18-350.40

Finding the Fourth Proportional to 1,216.28, 1,824.18 and 350.40

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Solution

The fourth proportional to 1,216.28, 1,824.18 and 350.40 is: 525.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.28 : 1,824.18 = 350.40 : x
  2. Step 2: Convert to fraction form
    1,216.28/1,824.18 = 350.40/x
  3. Step 3: Cross multiply
    1,216.28x = 1,824.18 × 350.40
  4. Step 4: Simplify right side
    1,216.28x = 639,192.67
  5. Step 5: Solve for x
    x = 639,192.67/1,216.28
  6. Step 6: Final answer
    x = 525.53

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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.