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Finding the Third Proportional to 256,780.50 and 572,569.50

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Solution

The third proportional to 256,780.50 and 572,569.50 is: 1,276,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,780.50 : 572,569.50 = 572,569.50 : x
  2. Step 2: Convert to fraction form
    256,780.50/572,569.50 = 572,569.50/x
  3. Step 3: Cross multiply
    256,780.50x = 572,569.50 × 572,569.50
  4. Step 4: Simplify right side
    256,780.50x = 327,835,832,330.25
  5. Step 5: Solve for x
    x = 327,835,832,330.25/256,780.50
  6. Step 6: Final answer
    x = 1,276,716.23

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.