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Finding the Fourth Proportional to 833, 1,149.81 and 522.50

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Solution

The fourth proportional to 833, 1,149.81 and 522.50 is: 721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    833 : 1,149.81 = 522.50 : x
  2. Step 2: Convert to fraction form
    833/1,149.81 = 522.50/x
  3. Step 3: Cross multiply
    833x = 1,149.81 × 522.50
  4. Step 4: Simplify right side
    833x = 600,775.73
  5. Step 5: Solve for x
    x = 600,775.73/833
  6. Step 6: Final answer
    x = 721.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.