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Finding the Third Proportional to 203,507.81 and 299,164.50

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Solution

The third proportional to 203,507.81 and 299,164.50 is: 439,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,507.81 : 299,164.50 = 299,164.50 : x
  2. Step 2: Convert to fraction form
    203,507.81/299,164.50 = 299,164.50/x
  3. Step 3: Cross multiply
    203,507.81x = 299,164.50 × 299,164.50
  4. Step 4: Simplify right side
    203,507.81x = 89,499,398,060.25
  5. Step 5: Solve for x
    x = 89,499,398,060.25/203,507.81
  6. Step 6: Final answer
    x = 439,783.60

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.