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Finding the Third Proportional to 210,660.75 and 458,865

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Solution

The third proportional to 210,660.75 and 458,865 is: 999,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,660.75 : 458,865 = 458,865 : x
  2. Step 2: Convert to fraction form
    210,660.75/458,865 = 458,865/x
  3. Step 3: Cross multiply
    210,660.75x = 458,865 × 458,865
  4. Step 4: Simplify right side
    210,660.75x = 210,557,088,225
  5. Step 5: Solve for x
    x = 210,557,088,225/210,660.75
  6. Step 6: Final answer
    x = 999,507.92

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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.