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Finding the Third Proportional to 262,305 and 393,459.75

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Solution

The third proportional to 262,305 and 393,459.75 is: 590,193.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,305 : 393,459.75 = 393,459.75 : x
  2. Step 2: Convert to fraction form
    262,305/393,459.75 = 393,459.75/x
  3. Step 3: Cross multiply
    262,305x = 393,459.75 × 393,459.75
  4. Step 4: Simplify right side
    262,305x = 154,810,574,870.06
  5. Step 5: Solve for x
    x = 154,810,574,870.06/262,305
  6. Step 6: Final answer
    x = 590,193.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.