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Finding the Fourth Proportional to 259.64, 358.20 and 160.04

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Solution

The fourth proportional to 259.64, 358.20 and 160.04 is: 220.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.64 : 358.20 = 160.04 : x
  2. Step 2: Convert to fraction form
    259.64/358.20 = 160.04/x
  3. Step 3: Cross multiply
    259.64x = 358.20 × 160.04
  4. Step 4: Simplify right side
    259.64x = 57,326.33
  5. Step 5: Solve for x
    x = 57,326.33/259.64
  6. Step 6: Final answer
    x = 220.79

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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.