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Finding the Fourth Proportional to 468.52, 646.58 and 282.02

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Solution

The fourth proportional to 468.52, 646.58 and 282.02 is: 389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.52 : 646.58 = 282.02 : x
  2. Step 2: Convert to fraction form
    468.52/646.58 = 282.02/x
  3. Step 3: Cross multiply
    468.52x = 646.58 × 282.02
  4. Step 4: Simplify right side
    468.52x = 182,348.49
  5. Step 5: Solve for x
    x = 182,348.49/468.52
  6. Step 6: Final answer
    x = 389.20

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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.