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Finding the Third Proportional to 256,420.69 and 550,225.13

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Solution

The third proportional to 256,420.69 and 550,225.13 is: 1,180,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,420.69 : 550,225.13 = 550,225.13 : x
  2. Step 2: Convert to fraction form
    256,420.69/550,225.13 = 550,225.13/x
  3. Step 3: Cross multiply
    256,420.69x = 550,225.13 × 550,225.13
  4. Step 4: Simplify right side
    256,420.69x = 302,747,688,181.27
  5. Step 5: Solve for x
    x = 302,747,688,181.27/256,420.69
  6. Step 6: Final answer
    x = 1,180,667.95

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.