Home / 1,224.34-1,836.50-299.91

Finding the Fourth Proportional to 1,224.34, 1,836.50 and 299.91

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Solution

The fourth proportional to 1,224.34, 1,836.50 and 299.91 is: 449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.34 : 1,836.50 = 299.91 : x
  2. Step 2: Convert to fraction form
    1,224.34/1,836.50 = 299.91/x
  3. Step 3: Cross multiply
    1,224.34x = 1,836.50 × 299.91
  4. Step 4: Simplify right side
    1,224.34x = 550,783.22
  5. Step 5: Solve for x
    x = 550,783.22/1,224.34
  6. Step 6: Final answer
    x = 449.86

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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.