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Finding the Fourth Proportional to 468.56, 646.71 and 293.60

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Solution

The fourth proportional to 468.56, 646.71 and 293.60 is: 405.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.56 : 646.71 = 293.60 : x
  2. Step 2: Convert to fraction form
    468.56/646.71 = 293.60/x
  3. Step 3: Cross multiply
    468.56x = 646.71 × 293.60
  4. Step 4: Simplify right side
    468.56x = 189,874.06
  5. Step 5: Solve for x
    x = 189,874.06/468.56
  6. Step 6: Final answer
    x = 405.23

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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.