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Finding the Fourth Proportional to 385.62, 575.54 and 333.33

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Solution

The fourth proportional to 385.62, 575.54 and 333.33 is: 497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.62 : 575.54 = 333.33 : x
  2. Step 2: Convert to fraction form
    385.62/575.54 = 333.33/x
  3. Step 3: Cross multiply
    385.62x = 575.54 × 333.33
  4. Step 4: Simplify right side
    385.62x = 191,843.08
  5. Step 5: Solve for x
    x = 191,843.08/385.62
  6. Step 6: Final answer
    x = 497.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.