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Finding the Fourth Proportional to 309,273.56, 426,790.27 and 181,957.34

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Solution

The fourth proportional to 309,273.56, 426,790.27 and 181,957.34 is: 251,096.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,273.56 : 426,790.27 = 181,957.34 : x
  2. Step 2: Convert to fraction form
    309,273.56/426,790.27 = 181,957.34/x
  3. Step 3: Cross multiply
    309,273.56x = 426,790.27 × 181,957.34
  4. Step 4: Simplify right side
    309,273.56x = 77,657,622,267.08
  5. Step 5: Solve for x
    x = 77,657,622,267.08/309,273.56
  6. Step 6: Final answer
    x = 251,096.87

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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.