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Finding the Fourth Proportional to 219,031.44, 328,849.71 and 151,396.86

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Solution

The fourth proportional to 219,031.44, 328,849.71 and 151,396.86 is: 227,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,031.44 : 328,849.71 = 151,396.86 : x
  2. Step 2: Convert to fraction form
    219,031.44/328,849.71 = 151,396.86/x
  3. Step 3: Cross multiply
    219,031.44x = 328,849.71 × 151,396.86
  4. Step 4: Simplify right side
    219,031.44x = 49,786,813,505.91
  5. Step 5: Solve for x
    x = 49,786,813,505.91/219,031.44
  6. Step 6: Final answer
    x = 227,304.42

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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.