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Finding the Fourth Proportional to 364.64, 546.89 and 133.52

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Solution

The fourth proportional to 364.64, 546.89 and 133.52 is: 200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.64 : 546.89 = 133.52 : x
  2. Step 2: Convert to fraction form
    364.64/546.89 = 133.52/x
  3. Step 3: Cross multiply
    364.64x = 546.89 × 133.52
  4. Step 4: Simplify right side
    364.64x = 73,017.35
  5. Step 5: Solve for x
    x = 73,017.35/364.64
  6. Step 6: Final answer
    x = 200.25

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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.