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Finding the Fourth Proportional to 354,989.39, 532,677.83 and 205,521.61

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Solution

The fourth proportional to 354,989.39, 532,677.83 and 205,521.61 is: 308,394.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,989.39 : 532,677.83 = 205,521.61 : x
  2. Step 2: Convert to fraction form
    354,989.39/532,677.83 = 205,521.61/x
  3. Step 3: Cross multiply
    354,989.39x = 532,677.83 × 205,521.61
  4. Step 4: Simplify right side
    354,989.39x = 109,476,805,232.91
  5. Step 5: Solve for x
    x = 109,476,805,232.91/354,989.39
  6. Step 6: Final answer
    x = 308,394.58

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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.