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Finding the Third Proportional to 195,590 and 428,511

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Solution

The third proportional to 195,590 and 428,511 is: 938,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,590 : 428,511 = 428,511 : x
  2. Step 2: Convert to fraction form
    195,590/428,511 = 428,511/x
  3. Step 3: Cross multiply
    195,590x = 428,511 × 428,511
  4. Step 4: Simplify right side
    195,590x = 183,621,677,121
  5. Step 5: Solve for x
    x = 183,621,677,121/195,590
  6. Step 6: Final answer
    x = 938,809.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.