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Finding the Fourth Proportional to 300,543.70, 414,750.30 and 173,227.50

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Solution

The fourth proportional to 300,543.70, 414,750.30 and 173,227.50 is: 239,053.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,543.70 : 414,750.30 = 173,227.50 : x
  2. Step 2: Convert to fraction form
    300,543.70/414,750.30 = 173,227.50/x
  3. Step 3: Cross multiply
    300,543.70x = 414,750.30 × 173,227.50
  4. Step 4: Simplify right side
    300,543.70x = 71,846,157,593.25
  5. Step 5: Solve for x
    x = 71,846,157,593.25/300,543.70
  6. Step 6: Final answer
    x = 239,053.95

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1.5x scale

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.