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Finding the Fourth Proportional to 408,908.18, 564,309.86 and 227,608.61

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Solution

The fourth proportional to 408,908.18, 564,309.86 and 227,608.61 is: 314,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,908.18 : 564,309.86 = 227,608.61 : x
  2. Step 2: Convert to fraction form
    408,908.18/564,309.86 = 227,608.61/x
  3. Step 3: Cross multiply
    408,908.18x = 564,309.86 × 227,608.61
  4. Step 4: Simplify right side
    408,908.18x = 128,441,778,884.30
  5. Step 5: Solve for x
    x = 128,441,778,884.30/408,908.18
  6. Step 6: Final answer
    x = 314,109.09

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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.