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Finding the Fourth Proportional to 279,179.48, 418,610.10 and 190,540.28

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Solution

The fourth proportional to 279,179.48, 418,610.10 and 190,540.28 is: 285,701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,179.48 : 418,610.10 = 190,540.28 : x
  2. Step 2: Convert to fraction form
    279,179.48/418,610.10 = 190,540.28/x
  3. Step 3: Cross multiply
    279,179.48x = 418,610.10 × 190,540.28
  4. Step 4: Simplify right side
    279,179.48x = 79,762,085,664.83
  5. Step 5: Solve for x
    x = 79,762,085,664.83/279,179.48
  6. Step 6: Final answer
    x = 285,701.82

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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.