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Finding the Third Proportional to 261,889.50 and 392,402.25

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Solution

The third proportional to 261,889.50 and 392,402.25 is: 587,956.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,889.50 : 392,402.25 = 392,402.25 : x
  2. Step 2: Convert to fraction form
    261,889.50/392,402.25 = 392,402.25/x
  3. Step 3: Cross multiply
    261,889.50x = 392,402.25 × 392,402.25
  4. Step 4: Simplify right side
    261,889.50x = 153,979,525,805.06
  5. Step 5: Solve for x
    x = 153,979,525,805.06/261,889.50
  6. Step 6: Final answer
    x = 587,956.09

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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.