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Finding the Fourth Proportional to 612.59, 845.30 and 363.97

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Solution

The fourth proportional to 612.59, 845.30 and 363.97 is: 502.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.59 : 845.30 = 363.97 : x
  2. Step 2: Convert to fraction form
    612.59/845.30 = 363.97/x
  3. Step 3: Cross multiply
    612.59x = 845.30 × 363.97
  4. Step 4: Simplify right side
    612.59x = 307,661.89
  5. Step 5: Solve for x
    x = 307,661.89/612.59
  6. Step 6: Final answer
    x = 502.23

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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.