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Finding the Fourth Proportional to 561,250.65, 842,208.13 and 206,513.79

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Solution

The fourth proportional to 561,250.65, 842,208.13 and 206,513.79 is: 309,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,250.65 : 842,208.13 = 206,513.79 : x
  2. Step 2: Convert to fraction form
    561,250.65/842,208.13 = 206,513.79/x
  3. Step 3: Cross multiply
    561,250.65x = 842,208.13 × 206,513.79
  4. Step 4: Simplify right side
    561,250.65x = 173,927,589,994.97
  5. Step 5: Solve for x
    x = 173,927,589,994.97/561,250.65
  6. Step 6: Final answer
    x = 309,892.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.