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Finding the Fourth Proportional to 219,228.30, 328,818.15 and 61,472.70

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Solution

The fourth proportional to 219,228.30, 328,818.15 and 61,472.70 is: 92,202.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,228.30 : 328,818.15 = 61,472.70 : x
  2. Step 2: Convert to fraction form
    219,228.30/328,818.15 = 61,472.70/x
  3. Step 3: Cross multiply
    219,228.30x = 328,818.15 × 61,472.70
  4. Step 4: Simplify right side
    219,228.30x = 20,213,339,489.51
  5. Step 5: Solve for x
    x = 20,213,339,489.51/219,228.30
  6. Step 6: Final answer
    x = 92,202.24

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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.