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Finding the Fourth Proportional to 146,654.25, 220,005.20 and 45,428.66

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Solution

The fourth proportional to 146,654.25, 220,005.20 and 45,428.66 is: 68,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,654.25 : 220,005.20 = 45,428.66 : x
  2. Step 2: Convert to fraction form
    146,654.25/220,005.20 = 45,428.66/x
  3. Step 3: Cross multiply
    146,654.25x = 220,005.20 × 45,428.66
  4. Step 4: Simplify right side
    146,654.25x = 9,994,541,429.03
  5. Step 5: Solve for x
    x = 9,994,541,429.03/146,654.25
  6. Step 6: Final answer
    x = 68,150.37

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Why These Related Problems?

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