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Finding the Fourth Proportional to 329,099.63, 493,649.44 and 79,781.63

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Solution

The fourth proportional to 329,099.63, 493,649.44 and 79,781.63 is: 119,672.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,099.63 : 493,649.44 = 79,781.63 : x
  2. Step 2: Convert to fraction form
    329,099.63/493,649.44 = 79,781.63/x
  3. Step 3: Cross multiply
    329,099.63x = 493,649.44 × 79,781.63
  4. Step 4: Simplify right side
    329,099.63x = 39,384,154,304.09
  5. Step 5: Solve for x
    x = 39,384,154,304.09/329,099.63
  6. Step 6: Final answer
    x = 119,672.44

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Similar ratio
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1.5x scale

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.