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Finding the Fourth Proportional to 408,318.16, 563,504.60 and 227,070.64

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Solution

The fourth proportional to 408,318.16, 563,504.60 and 227,070.64 is: 313,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,318.16 : 563,504.60 = 227,070.64 : x
  2. Step 2: Convert to fraction form
    408,318.16/563,504.60 = 227,070.64/x
  3. Step 3: Cross multiply
    408,318.16x = 563,504.60 × 227,070.64
  4. Step 4: Simplify right side
    408,318.16x = 127,955,350,164.94
  5. Step 5: Solve for x
    x = 127,955,350,164.94/408,318.16
  6. Step 6: Final answer
    x = 313,371.69

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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.