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Finding the Fourth Proportional to 408,820.56, 564,166.74 and 227,532.45

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Solution

The fourth proportional to 408,820.56, 564,166.74 and 227,532.45 is: 313,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,820.56 : 564,166.74 = 227,532.45 : x
  2. Step 2: Convert to fraction form
    408,820.56/564,166.74 = 227,532.45/x
  3. Step 3: Cross multiply
    408,820.56x = 564,166.74 × 227,532.45
  4. Step 4: Simplify right side
    408,820.56x = 128,366,240,560.71
  5. Step 5: Solve for x
    x = 128,366,240,560.71/408,820.56
  6. Step 6: Final answer
    x = 313,991.65

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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.