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Finding the Fourth Proportional to 279,898.77, 419,846.40 and 69,536.64

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Solution

The fourth proportional to 279,898.77, 419,846.40 and 69,536.64 is: 104,304.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,898.77 : 419,846.40 = 69,536.64 : x
  2. Step 2: Convert to fraction form
    279,898.77/419,846.40 = 69,536.64/x
  3. Step 3: Cross multiply
    279,898.77x = 419,846.40 × 69,536.64
  4. Step 4: Simplify right side
    279,898.77x = 29,194,707,972.10
  5. Step 5: Solve for x
    x = 29,194,707,972.10/279,898.77
  6. Step 6: Final answer
    x = 104,304.52

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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.