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Finding the Fourth Proportional to 223.60, 308.52 and 135.06

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Solution

The fourth proportional to 223.60, 308.52 and 135.06 is: 186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.60 : 308.52 = 135.06 : x
  2. Step 2: Convert to fraction form
    223.60/308.52 = 135.06/x
  3. Step 3: Cross multiply
    223.60x = 308.52 × 135.06
  4. Step 4: Simplify right side
    223.60x = 41,668.71
  5. Step 5: Solve for x
    x = 41,668.71/223.60
  6. Step 6: Final answer
    x = 186.35

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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.