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Finding the Fourth Proportional to 219,067.40, 328,601.10 and 149,083.40

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Solution

The fourth proportional to 219,067.40, 328,601.10 and 149,083.40 is: 223,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,067.40 : 328,601.10 = 149,083.40 : x
  2. Step 2: Convert to fraction form
    219,067.40/328,601.10 = 149,083.40/x
  3. Step 3: Cross multiply
    219,067.40x = 328,601.10 × 149,083.40
  4. Step 4: Simplify right side
    219,067.40x = 48,988,969,231.74
  5. Step 5: Solve for x
    x = 48,988,969,231.74/219,067.40
  6. Step 6: Final answer
    x = 223,625.10

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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.