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Finding the Fourth Proportional to 468.04, 646.16 and 293.60

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Solution

The fourth proportional to 468.04, 646.16 and 293.60 is: 405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.04 : 646.16 = 293.60 : x
  2. Step 2: Convert to fraction form
    468.04/646.16 = 293.60/x
  3. Step 3: Cross multiply
    468.04x = 646.16 × 293.60
  4. Step 4: Simplify right side
    468.04x = 189,712.58
  5. Step 5: Solve for x
    x = 189,712.58/468.04
  6. Step 6: Final answer
    x = 405.33

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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.