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Finding the Fourth Proportional to 273,516.67, 409,702.79 and 219,918.41

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Solution

The fourth proportional to 273,516.67, 409,702.79 and 219,918.41 is: 329,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,516.67 : 409,702.79 = 219,918.41 : x
  2. Step 2: Convert to fraction form
    273,516.67/409,702.79 = 219,918.41/x
  3. Step 3: Cross multiply
    273,516.67x = 409,702.79 × 219,918.41
  4. Step 4: Simplify right side
    273,516.67x = 90,101,186,149.36
  5. Step 5: Solve for x
    x = 90,101,186,149.36/273,516.67
  6. Step 6: Final answer
    x = 329,417.53

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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.