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Finding the Fourth Proportional to 610.81, 914.66 and 336.61

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Solution

The fourth proportional to 610.81, 914.66 and 336.61 is: 504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.81 : 914.66 = 336.61 : x
  2. Step 2: Convert to fraction form
    610.81/914.66 = 336.61/x
  3. Step 3: Cross multiply
    610.81x = 914.66 × 336.61
  4. Step 4: Simplify right side
    610.81x = 307,877.45
  5. Step 5: Solve for x
    x = 307,877.45/610.81
  6. Step 6: Final answer
    x = 504.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.