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Finding the Fourth Proportional to 271,817.70, 407,726.55 and 247,323.30

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Solution

The fourth proportional to 271,817.70, 407,726.55 and 247,323.30 is: 370,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,817.70 : 407,726.55 = 247,323.30 : x
  2. Step 2: Convert to fraction form
    271,817.70/407,726.55 = 247,323.30/x
  3. Step 3: Cross multiply
    271,817.70x = 407,726.55 × 247,323.30
  4. Step 4: Simplify right side
    271,817.70x = 100,840,275,843.62
  5. Step 5: Solve for x
    x = 100,840,275,843.62/271,817.70
  6. Step 6: Final answer
    x = 370,984.95

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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.