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Finding the Fourth Proportional to 612.70, 845.50 and 363.96

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Solution

The fourth proportional to 612.70, 845.50 and 363.96 is: 502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.70 : 845.50 = 363.96 : x
  2. Step 2: Convert to fraction form
    612.70/845.50 = 363.96/x
  3. Step 3: Cross multiply
    612.70x = 845.50 × 363.96
  4. Step 4: Simplify right side
    612.70x = 307,728.18
  5. Step 5: Solve for x
    x = 307,728.18/612.70
  6. Step 6: Final answer
    x = 502.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.