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Finding the Fourth Proportional to 186.59, 258.60 and 183.12

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Solution

The fourth proportional to 186.59, 258.60 and 183.12 is: 253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.59 : 258.60 = 183.12 : x
  2. Step 2: Convert to fraction form
    186.59/258.60 = 183.12/x
  3. Step 3: Cross multiply
    186.59x = 258.60 × 183.12
  4. Step 4: Simplify right side
    186.59x = 47,354.83
  5. Step 5: Solve for x
    x = 47,354.83/186.59
  6. Step 6: Final answer
    x = 253.80

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.