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Finding the Fourth Proportional to 646.34, 968.63 and 294.68

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Solution

The fourth proportional to 646.34, 968.63 and 294.68 is: 441.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.34 : 968.63 = 294.68 : x
  2. Step 2: Convert to fraction form
    646.34/968.63 = 294.68/x
  3. Step 3: Cross multiply
    646.34x = 968.63 × 294.68
  4. Step 4: Simplify right side
    646.34x = 285,429.57
  5. Step 5: Solve for x
    x = 285,429.57/646.34
  6. Step 6: Final answer
    x = 441.61

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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.