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Finding the Fourth Proportional to 356.89, 491.94 and 246.19

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Solution

The fourth proportional to 356.89, 491.94 and 246.19 is: 339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.89 : 491.94 = 246.19 : x
  2. Step 2: Convert to fraction form
    356.89/491.94 = 246.19/x
  3. Step 3: Cross multiply
    356.89x = 491.94 × 246.19
  4. Step 4: Simplify right side
    356.89x = 121,110.71
  5. Step 5: Solve for x
    x = 121,110.71/356.89
  6. Step 6: Final answer
    x = 339.35

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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.