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Finding the Fourth Proportional to 293.78, 405.62 and 183.28

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Solution

The fourth proportional to 293.78, 405.62 and 183.28 is: 253.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.78 : 405.62 = 183.28 : x
  2. Step 2: Convert to fraction form
    293.78/405.62 = 183.28/x
  3. Step 3: Cross multiply
    293.78x = 405.62 × 183.28
  4. Step 4: Simplify right side
    293.78x = 74,342.03
  5. Step 5: Solve for x
    x = 74,342.03/293.78
  6. Step 6: Final answer
    x = 253.05

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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.