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Finding the Fourth Proportional to 146,786.70, 220,266.45 and 53,280.30

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Solution

The fourth proportional to 146,786.70, 220,266.45 and 53,280.30 is: 79,951.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,786.70 : 220,266.45 = 53,280.30 : x
  2. Step 2: Convert to fraction form
    146,786.70/220,266.45 = 53,280.30/x
  3. Step 3: Cross multiply
    146,786.70x = 220,266.45 × 53,280.30
  4. Step 4: Simplify right side
    146,786.70x = 11,735,862,535.94
  5. Step 5: Solve for x
    x = 11,735,862,535.94/146,786.70
  6. Step 6: Final answer
    x = 79,951.81

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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.