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Finding the Fourth Proportional to 612.95, 845.58 and 350.82

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Solution

The fourth proportional to 612.95, 845.58 and 350.82 is: 483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.95 : 845.58 = 350.82 : x
  2. Step 2: Convert to fraction form
    612.95/845.58 = 350.82/x
  3. Step 3: Cross multiply
    612.95x = 845.58 × 350.82
  4. Step 4: Simplify right side
    612.95x = 296,646.38
  5. Step 5: Solve for x
    x = 296,646.38/612.95
  6. Step 6: Final answer
    x = 483.97

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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.