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Finding the Fourth Proportional to 432.46, 647.07 and 335.26

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Solution

The fourth proportional to 432.46, 647.07 and 335.26 is: 501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.46 : 647.07 = 335.26 : x
  2. Step 2: Convert to fraction form
    432.46/647.07 = 335.26/x
  3. Step 3: Cross multiply
    432.46x = 647.07 × 335.26
  4. Step 4: Simplify right side
    432.46x = 216,936.69
  5. Step 5: Solve for x
    x = 216,936.69/432.46
  6. Step 6: Final answer
    x = 501.63

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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.