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Finding the Fourth Proportional to 369.60, 552.78 and 301.56

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Solution

The fourth proportional to 369.60, 552.78 and 301.56 is: 451.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.60 : 552.78 = 301.56 : x
  2. Step 2: Convert to fraction form
    369.60/552.78 = 301.56/x
  3. Step 3: Cross multiply
    369.60x = 552.78 × 301.56
  4. Step 4: Simplify right side
    369.60x = 166,696.34
  5. Step 5: Solve for x
    x = 166,696.34/369.60
  6. Step 6: Final answer
    x = 451.02

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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.