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Finding the Fourth Proportional to 432.88, 650.08 and 336.40

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Solution

The fourth proportional to 432.88, 650.08 and 336.40 is: 505.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.88 : 650.08 = 336.40 : x
  2. Step 2: Convert to fraction form
    432.88/650.08 = 336.40/x
  3. Step 3: Cross multiply
    432.88x = 650.08 × 336.40
  4. Step 4: Simplify right side
    432.88x = 218,686.91
  5. Step 5: Solve for x
    x = 218,686.91/432.88
  6. Step 6: Final answer
    x = 505.19

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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.