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Finding the Third Proportional to 189,531 and 408,585

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Solution

The third proportional to 189,531 and 408,585 is: 880,814.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,531 : 408,585 = 408,585 : x
  2. Step 2: Convert to fraction form
    189,531/408,585 = 408,585/x
  3. Step 3: Cross multiply
    189,531x = 408,585 × 408,585
  4. Step 4: Simplify right side
    189,531x = 166,941,702,225
  5. Step 5: Solve for x
    x = 166,941,702,225/189,531
  6. Step 6: Final answer
    x = 880,814.76

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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.