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Finding the Fourth Proportional to 408,648.11, 563,923.63 and 227,360.39

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Solution

The fourth proportional to 408,648.11, 563,923.63 and 227,360.39 is: 313,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,648.11 : 563,923.63 = 227,360.39 : x
  2. Step 2: Convert to fraction form
    408,648.11/563,923.63 = 227,360.39/x
  3. Step 3: Cross multiply
    408,648.11x = 563,923.63 × 227,360.39
  4. Step 4: Simplify right side
    408,648.11x = 128,213,896,447.02
  5. Step 5: Solve for x
    x = 128,213,896,447.02/408,648.11
  6. Step 6: Final answer
    x = 313,751.35

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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.