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Finding the Fourth Proportional to 243.53, 365.74 and 152.41

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Solution

The fourth proportional to 243.53, 365.74 and 152.41 is: 228.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.53 : 365.74 = 152.41 : x
  2. Step 2: Convert to fraction form
    243.53/365.74 = 152.41/x
  3. Step 3: Cross multiply
    243.53x = 365.74 × 152.41
  4. Step 4: Simplify right side
    243.53x = 55,741.14
  5. Step 5: Solve for x
    x = 55,741.14/243.53
  6. Step 6: Final answer
    x = 228.89

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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.