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Finding the Fourth Proportional to 354,651.41, 489,597.41 and 225,719.66

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Solution

The fourth proportional to 354,651.41, 489,597.41 and 225,719.66 is: 311,606.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,651.41 : 489,597.41 = 225,719.66 : x
  2. Step 2: Convert to fraction form
    354,651.41/489,597.41 = 225,719.66/x
  3. Step 3: Cross multiply
    354,651.41x = 489,597.41 × 225,719.66
  4. Step 4: Simplify right side
    354,651.41x = 110,511,762,710.37
  5. Step 5: Solve for x
    x = 110,511,762,710.37/354,651.41
  6. Step 6: Final answer
    x = 311,606.72

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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.