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Finding the Fourth Proportional to 465.22, 693.99 and 432.06

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Solution

The fourth proportional to 465.22, 693.99 and 432.06 is: 644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.22 : 693.99 = 432.06 : x
  2. Step 2: Convert to fraction form
    465.22/693.99 = 432.06/x
  3. Step 3: Cross multiply
    465.22x = 693.99 × 432.06
  4. Step 4: Simplify right side
    465.22x = 299,845.88
  5. Step 5: Solve for x
    x = 299,845.88/465.22
  6. Step 6: Final answer
    x = 644.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.