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Finding the Fourth Proportional to 612.76, 845.49 and 363.99

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Solution

The fourth proportional to 612.76, 845.49 and 363.99 is: 502.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.76 : 845.49 = 363.99 : x
  2. Step 2: Convert to fraction form
    612.76/845.49 = 363.99/x
  3. Step 3: Cross multiply
    612.76x = 845.49 × 363.99
  4. Step 4: Simplify right side
    612.76x = 307,748.09
  5. Step 5: Solve for x
    x = 307,748.09/612.76
  6. Step 6: Final answer
    x = 502.23

Related Problems

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Double scale
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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.