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Finding the Fourth Proportional to 114.58, 171.82 and 49.58

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Solution

The fourth proportional to 114.58, 171.82 and 49.58 is: 74.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.58 : 171.82 = 49.58 : x
  2. Step 2: Convert to fraction form
    114.58/171.82 = 49.58/x
  3. Step 3: Cross multiply
    114.58x = 171.82 × 49.58
  4. Step 4: Simplify right side
    114.58x = 8,518.84
  5. Step 5: Solve for x
    x = 8,518.84/114.58
  6. Step 6: Final answer
    x = 74.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.