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Finding the Fourth Proportional to 552.94, 763.05 and 304.26

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Solution

The fourth proportional to 552.94, 763.05 and 304.26 is: 419.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.94 : 763.05 = 304.26 : x
  2. Step 2: Convert to fraction form
    552.94/763.05 = 304.26/x
  3. Step 3: Cross multiply
    552.94x = 763.05 × 304.26
  4. Step 4: Simplify right side
    552.94x = 232,165.59
  5. Step 5: Solve for x
    x = 232,165.59/552.94
  6. Step 6: Final answer
    x = 419.87

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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.