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Finding the Fourth Proportional to 365.90, 549.16 and 160.64

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Solution

The fourth proportional to 365.90, 549.16 and 160.64 is: 241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.90 : 549.16 = 160.64 : x
  2. Step 2: Convert to fraction form
    365.90/549.16 = 160.64/x
  3. Step 3: Cross multiply
    365.90x = 549.16 × 160.64
  4. Step 4: Simplify right side
    365.90x = 88,217.06
  5. Step 5: Solve for x
    x = 88,217.06/365.90
  6. Step 6: Final answer
    x = 241.10

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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.