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Finding the Fourth Proportional to 340,995.27, 511,808.40 and 172,633.89

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Solution

The fourth proportional to 340,995.27, 511,808.40 and 172,633.89 is: 259,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,995.27 : 511,808.40 = 172,633.89 : x
  2. Step 2: Convert to fraction form
    340,995.27/511,808.40 = 172,633.89/x
  3. Step 3: Cross multiply
    340,995.27x = 511,808.40 × 172,633.89
  4. Step 4: Simplify right side
    340,995.27x = 88,355,475,026.68
  5. Step 5: Solve for x
    x = 88,355,475,026.68/340,995.27
  6. Step 6: Final answer
    x = 259,110.56

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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.