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Finding the Fourth Proportional to 279,726, 419,655.44 and 92,737.52

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Solution

The fourth proportional to 279,726, 419,655.44 and 92,737.52 is: 139,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,726 : 419,655.44 = 92,737.52 : x
  2. Step 2: Convert to fraction form
    279,726/419,655.44 = 92,737.52/x
  3. Step 3: Cross multiply
    279,726x = 419,655.44 × 92,737.52
  4. Step 4: Simplify right side
    279,726x = 38,917,804,760.11
  5. Step 5: Solve for x
    x = 38,917,804,760.11/279,726
  6. Step 6: Final answer
    x = 139,128.31

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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.