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Finding the Fourth Proportional to 368.11, 551.76 and 151.48

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Solution

The fourth proportional to 368.11, 551.76 and 151.48 is: 227.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.11 : 551.76 = 151.48 : x
  2. Step 2: Convert to fraction form
    368.11/551.76 = 151.48/x
  3. Step 3: Cross multiply
    368.11x = 551.76 × 151.48
  4. Step 4: Simplify right side
    368.11x = 83,580.60
  5. Step 5: Solve for x
    x = 83,580.60/368.11
  6. Step 6: Final answer
    x = 227.05

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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.