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Finding the Fourth Proportional to 432.51, 648.77 and 250.08

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Solution

The fourth proportional to 432.51, 648.77 and 250.08 is: 375.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.51 : 648.77 = 250.08 : x
  2. Step 2: Convert to fraction form
    432.51/648.77 = 250.08/x
  3. Step 3: Cross multiply
    432.51x = 648.77 × 250.08
  4. Step 4: Simplify right side
    432.51x = 162,243.15
  5. Step 5: Solve for x
    x = 162,243.15/432.51
  6. Step 6: Final answer
    x = 375.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.