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Finding the Third Proportional to 256,494.75 and 556,798.13

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Solution

The third proportional to 256,494.75 and 556,798.13 is: 1,208,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,494.75 : 556,798.13 = 556,798.13 : x
  2. Step 2: Convert to fraction form
    256,494.75/556,798.13 = 556,798.13/x
  3. Step 3: Cross multiply
    256,494.75x = 556,798.13 × 556,798.13
  4. Step 4: Simplify right side
    256,494.75x = 310,024,152,003.52
  5. Step 5: Solve for x
    x = 310,024,152,003.52/256,494.75
  6. Step 6: Final answer
    x = 1,208,695.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.