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Finding the Fourth Proportional to 432,173.27, 648,261.45 and 132,653.88

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Solution

The fourth proportional to 432,173.27, 648,261.45 and 132,653.88 is: 198,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,173.27 : 648,261.45 = 132,653.88 : x
  2. Step 2: Convert to fraction form
    432,173.27/648,261.45 = 132,653.88/x
  3. Step 3: Cross multiply
    432,173.27x = 648,261.45 × 132,653.88
  4. Step 4: Simplify right side
    432,173.27x = 85,994,392,692.35
  5. Step 5: Solve for x
    x = 85,994,392,692.35/432,173.27
  6. Step 6: Final answer
    x = 198,981.29

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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.