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Finding the Fourth Proportional to 491.10, 736.55 and 162.05

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Solution

The fourth proportional to 491.10, 736.55 and 162.05 is: 243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.10 : 736.55 = 162.05 : x
  2. Step 2: Convert to fraction form
    491.10/736.55 = 162.05/x
  3. Step 3: Cross multiply
    491.10x = 736.55 × 162.05
  4. Step 4: Simplify right side
    491.10x = 119,353.43
  5. Step 5: Solve for x
    x = 119,353.43/491.10
  6. Step 6: Final answer
    x = 243.03

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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.