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Finding the Fourth Proportional to 468.38, 645.77 and 369.97

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Solution

The fourth proportional to 468.38, 645.77 and 369.97 is: 510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.38 : 645.77 = 369.97 : x
  2. Step 2: Convert to fraction form
    468.38/645.77 = 369.97/x
  3. Step 3: Cross multiply
    468.38x = 645.77 × 369.97
  4. Step 4: Simplify right side
    468.38x = 238,914.84
  5. Step 5: Solve for x
    x = 238,914.84/468.38
  6. Step 6: Final answer
    x = 510.08

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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.