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Finding the Fourth Proportional to 468.18, 646.23 and 271.74

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Solution

The fourth proportional to 468.18, 646.23 and 271.74 is: 375.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.18 : 646.23 = 271.74 : x
  2. Step 2: Convert to fraction form
    468.18/646.23 = 271.74/x
  3. Step 3: Cross multiply
    468.18x = 646.23 × 271.74
  4. Step 4: Simplify right side
    468.18x = 175,606.54
  5. Step 5: Solve for x
    x = 175,606.54/468.18
  6. Step 6: Final answer
    x = 375.08

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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.