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Finding the Fourth Proportional to 250,471.74, 345,665.14 and 148,557.54

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Solution

The fourth proportional to 250,471.74, 345,665.14 and 148,557.54 is: 205,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,471.74 : 345,665.14 = 148,557.54 : x
  2. Step 2: Convert to fraction form
    250,471.74/345,665.14 = 148,557.54/x
  3. Step 3: Cross multiply
    250,471.74x = 345,665.14 × 148,557.54
  4. Step 4: Simplify right side
    250,471.74x = 51,351,162,862.16
  5. Step 5: Solve for x
    x = 51,351,162,862.16/250,471.74
  6. Step 6: Final answer
    x = 205,017.79

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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.