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Finding the Fourth Proportional to 220,029.90, 330,749.55 and 204,429.30

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Solution

The fourth proportional to 220,029.90, 330,749.55 and 204,429.30 is: 307,298.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,029.90 : 330,749.55 = 204,429.30 : x
  2. Step 2: Convert to fraction form
    220,029.90/330,749.55 = 204,429.30/x
  3. Step 3: Cross multiply
    220,029.90x = 330,749.55 × 204,429.30
  4. Step 4: Simplify right side
    220,029.90x = 67,614,898,981.82
  5. Step 5: Solve for x
    x = 67,614,898,981.82/220,029.90
  6. Step 6: Final answer
    x = 307,298.69

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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.