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Finding the Fourth Proportional to 824.71, 1,237.09 and 362.25

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Solution

The fourth proportional to 824.71, 1,237.09 and 362.25 is: 543.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    824.71 : 1,237.09 = 362.25 : x
  2. Step 2: Convert to fraction form
    824.71/1,237.09 = 362.25/x
  3. Step 3: Cross multiply
    824.71x = 1,237.09 × 362.25
  4. Step 4: Simplify right side
    824.71x = 448,135.85
  5. Step 5: Solve for x
    x = 448,135.85/824.71
  6. Step 6: Final answer
    x = 543.39

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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.