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Finding the Fourth Proportional to 368.16, 552.17 and 121.35

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Solution

The fourth proportional to 368.16, 552.17 and 121.35 is: 182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.16 : 552.17 = 121.35 : x
  2. Step 2: Convert to fraction form
    368.16/552.17 = 121.35/x
  3. Step 3: Cross multiply
    368.16x = 552.17 × 121.35
  4. Step 4: Simplify right side
    368.16x = 67,005.22
  5. Step 5: Solve for x
    x = 67,005.22/368.16
  6. Step 6: Final answer
    x = 182.00

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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.