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Finding the Fourth Proportional to 402.51, 606.45 and 364.04

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Solution

The fourth proportional to 402.51, 606.45 and 364.04 is: 548.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.51 : 606.45 = 364.04 : x
  2. Step 2: Convert to fraction form
    402.51/606.45 = 364.04/x
  3. Step 3: Cross multiply
    402.51x = 606.45 × 364.04
  4. Step 4: Simplify right side
    402.51x = 220,769.03
  5. Step 5: Solve for x
    x = 220,769.03/402.51
  6. Step 6: Final answer
    x = 548.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.