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Finding the Fourth Proportional to 612.77, 845.34 and 364.07

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Solution

The fourth proportional to 612.77, 845.34 and 364.07 is: 502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.77 : 845.34 = 364.07 : x
  2. Step 2: Convert to fraction form
    612.77/845.34 = 364.07/x
  3. Step 3: Cross multiply
    612.77x = 845.34 × 364.07
  4. Step 4: Simplify right side
    612.77x = 307,761.30
  5. Step 5: Solve for x
    x = 307,761.30/612.77
  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.