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Finding the Fourth Proportional to 656.10, 984.60 and 363.60

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Solution

The fourth proportional to 656.10, 984.60 and 363.60 is: 545.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.10 : 984.60 = 363.60 : x
  2. Step 2: Convert to fraction form
    656.10/984.60 = 363.60/x
  3. Step 3: Cross multiply
    656.10x = 984.60 × 363.60
  4. Step 4: Simplify right side
    656.10x = 358,000.56
  5. Step 5: Solve for x
    x = 358,000.56/656.10
  6. Step 6: Final answer
    x = 545.65

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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.