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Finding the Fourth Proportional to 408,235.80, 563,374.80 and 226,940.76

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Solution

The fourth proportional to 408,235.80, 563,374.80 and 226,940.76 is: 313,183.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,235.80 : 563,374.80 = 226,940.76 : x
  2. Step 2: Convert to fraction form
    408,235.80/563,374.80 = 226,940.76/x
  3. Step 3: Cross multiply
    408,235.80x = 563,374.80 × 226,940.76
  4. Step 4: Simplify right side
    408,235.80x = 127,852,705,276.85
  5. Step 5: Solve for x
    x = 127,852,705,276.85/408,235.80
  6. Step 6: Final answer
    x = 313,183.47

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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.