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Finding the Fourth Proportional to 350,840.60, 484,160.66 and 189,695.61

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Solution

The fourth proportional to 350,840.60, 484,160.66 and 189,695.61 is: 261,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,840.60 : 484,160.66 = 189,695.61 : x
  2. Step 2: Convert to fraction form
    350,840.60/484,160.66 = 189,695.61/x
  3. Step 3: Cross multiply
    350,840.60x = 484,160.66 × 189,695.61
  4. Step 4: Simplify right side
    350,840.60x = 91,843,151,736.70
  5. Step 5: Solve for x
    x = 91,843,151,736.70/350,840.60
  6. Step 6: Final answer
    x = 261,780.28

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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.