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Finding the Third Proportional to 213,088 and 459,387

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Solution

The third proportional to 213,088 and 459,387 is: 990,372.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,088 : 459,387 = 459,387 : x
  2. Step 2: Convert to fraction form
    213,088/459,387 = 459,387/x
  3. Step 3: Cross multiply
    213,088x = 459,387 × 459,387
  4. Step 4: Simplify right side
    213,088x = 211,036,415,769
  5. Step 5: Solve for x
    x = 211,036,415,769/213,088
  6. Step 6: Final answer
    x = 990,372.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.