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Finding the Fourth Proportional to 408,440.73, 563,605.05 and 227,123.37

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Solution

The fourth proportional to 408,440.73, 563,605.05 and 227,123.37 is: 313,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,440.73 : 563,605.05 = 227,123.37 : x
  2. Step 2: Convert to fraction form
    408,440.73/563,605.05 = 227,123.37/x
  3. Step 3: Cross multiply
    408,440.73x = 563,605.05 × 227,123.37
  4. Step 4: Simplify right side
    408,440.73x = 128,007,878,305.02
  5. Step 5: Solve for x
    x = 128,007,878,305.02/408,440.73
  6. Step 6: Final answer
    x = 313,406.25

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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.