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Finding the Fourth Proportional to 656.04, 984.40 and 363.78

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Solution

The fourth proportional to 656.04, 984.40 and 363.78 is: 545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.04 : 984.40 = 363.78 : x
  2. Step 2: Convert to fraction form
    656.04/984.40 = 363.78/x
  3. Step 3: Cross multiply
    656.04x = 984.40 × 363.78
  4. Step 4: Simplify right side
    656.04x = 358,105.03
  5. Step 5: Solve for x
    x = 358,105.03/656.04
  6. Step 6: Final answer
    x = 545.86

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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.