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Finding the Fourth Proportional to 451.19, 677.93 and 432.97

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Solution

The fourth proportional to 451.19, 677.93 and 432.97 is: 650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.19 : 677.93 = 432.97 : x
  2. Step 2: Convert to fraction form
    451.19/677.93 = 432.97/x
  3. Step 3: Cross multiply
    451.19x = 677.93 × 432.97
  4. Step 4: Simplify right side
    451.19x = 293,521.93
  5. Step 5: Solve for x
    x = 293,521.93/451.19
  6. Step 6: Final answer
    x = 650.55

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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.