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Finding the Third Proportional to 219,088.50 and 331,000.50

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Solution

The third proportional to 219,088.50 and 331,000.50 is: 500,077.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,088.50 : 331,000.50 = 331,000.50 : x
  2. Step 2: Convert to fraction form
    219,088.50/331,000.50 = 331,000.50/x
  3. Step 3: Cross multiply
    219,088.50x = 331,000.50 × 331,000.50
  4. Step 4: Simplify right side
    219,088.50x = 109,561,331,000.25
  5. Step 5: Solve for x
    x = 109,561,331,000.25/219,088.50
  6. Step 6: Final answer
    x = 500,077.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.