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Finding the Fourth Proportional to 448,046.40, 672,069.60 and 199,214.40

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Solution

The fourth proportional to 448,046.40, 672,069.60 and 199,214.40 is: 298,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,046.40 : 672,069.60 = 199,214.40 : x
  2. Step 2: Convert to fraction form
    448,046.40/672,069.60 = 199,214.40/x
  3. Step 3: Cross multiply
    448,046.40x = 672,069.60 × 199,214.40
  4. Step 4: Simplify right side
    448,046.40x = 133,885,942,122.24
  5. Step 5: Solve for x
    x = 133,885,942,122.24/448,046.40
  6. Step 6: Final answer
    x = 298,821.60

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Similar ratio
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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.