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Finding the Fourth Proportional to 368.96, 552.18 and 303.20

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Solution

The fourth proportional to 368.96, 552.18 and 303.20 is: 453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.96 : 552.18 = 303.20 : x
  2. Step 2: Convert to fraction form
    368.96/552.18 = 303.20/x
  3. Step 3: Cross multiply
    368.96x = 552.18 × 303.20
  4. Step 4: Simplify right side
    368.96x = 167,420.98
  5. Step 5: Solve for x
    x = 167,420.98/368.96
  6. Step 6: Final answer
    x = 453.76

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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.