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Finding the Third Proportional to 140,980.50 and 306,807.75

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Solution

The third proportional to 140,980.50 and 306,807.75 is: 667,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,980.50 : 306,807.75 = 306,807.75 : x
  2. Step 2: Convert to fraction form
    140,980.50/306,807.75 = 306,807.75/x
  3. Step 3: Cross multiply
    140,980.50x = 306,807.75 × 306,807.75
  4. Step 4: Simplify right side
    140,980.50x = 94,130,995,460.06
  5. Step 5: Solve for x
    x = 94,130,995,460.06/140,980.50
  6. Step 6: Final answer
    x = 667,688.05

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.