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Finding the Fourth Proportional to 783.29, 1,175.10 and 296.33

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Solution

The fourth proportional to 783.29, 1,175.10 and 296.33 is: 444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    783.29 : 1,175.10 = 296.33 : x
  2. Step 2: Convert to fraction form
    783.29/1,175.10 = 296.33/x
  3. Step 3: Cross multiply
    783.29x = 1,175.10 × 296.33
  4. Step 4: Simplify right side
    783.29x = 348,217.38
  5. Step 5: Solve for x
    x = 348,217.38/783.29
  6. Step 6: Final answer
    x = 444.56

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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.