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Finding the Fourth Proportional to 288.94, 398.80 and 184.01

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Solution

The fourth proportional to 288.94, 398.80 and 184.01 is: 253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.94 : 398.80 = 184.01 : x
  2. Step 2: Convert to fraction form
    288.94/398.80 = 184.01/x
  3. Step 3: Cross multiply
    288.94x = 398.80 × 184.01
  4. Step 4: Simplify right side
    288.94x = 73,383.19
  5. Step 5: Solve for x
    x = 73,383.19/288.94
  6. Step 6: Final answer
    x = 253.97

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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.