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Finding the Fourth Proportional to 250,507.81, 345,737.71 and 158,635.48

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Solution

The fourth proportional to 250,507.81, 345,737.71 and 158,635.48 is: 218,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,507.81 : 345,737.71 = 158,635.48 : x
  2. Step 2: Convert to fraction form
    250,507.81/345,737.71 = 158,635.48/x
  3. Step 3: Cross multiply
    250,507.81x = 345,737.71 × 158,635.48
  4. Step 4: Simplify right side
    250,507.81x = 54,846,267,579.95
  5. Step 5: Solve for x
    x = 54,846,267,579.95/250,507.81
  6. Step 6: Final answer
    x = 218,940.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.