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Finding the Third Proportional to 262,428.38 and 393,574.13

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Solution

The third proportional to 262,428.38 and 393,574.13 is: 590,258.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,428.38 : 393,574.13 = 393,574.13 : x
  2. Step 2: Convert to fraction form
    262,428.38/393,574.13 = 393,574.13/x
  3. Step 3: Cross multiply
    262,428.38x = 393,574.13 × 393,574.13
  4. Step 4: Simplify right side
    262,428.38x = 154,900,591,869.52
  5. Step 5: Solve for x
    x = 154,900,591,869.52/262,428.38
  6. Step 6: Final answer
    x = 590,258.55

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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.