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Finding the Fourth Proportional to 416,600, 625,006.56 and 121,112

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Solution

The fourth proportional to 416,600, 625,006.56 and 121,112 is: 181,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,600 : 625,006.56 = 121,112 : x
  2. Step 2: Convert to fraction form
    416,600/625,006.56 = 121,112/x
  3. Step 3: Cross multiply
    416,600x = 625,006.56 × 121,112
  4. Step 4: Simplify right side
    416,600x = 75,695,794,494.72
  5. Step 5: Solve for x
    x = 75,695,794,494.72/416,600
  6. Step 6: Final answer
    x = 181,698.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.