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Finding the Third Proportional to 198,559 and 432,818

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Solution

The third proportional to 198,559 and 432,818 is: 943,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,559 : 432,818 = 432,818 : x
  2. Step 2: Convert to fraction form
    198,559/432,818 = 432,818/x
  3. Step 3: Cross multiply
    198,559x = 432,818 × 432,818
  4. Step 4: Simplify right side
    198,559x = 187,331,421,124
  5. Step 5: Solve for x
    x = 187,331,421,124/198,559
  6. Step 6: Final answer
    x = 943,454.70

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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.