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Finding the Fourth Proportional to 215,057.25, 322,384.37 and 72,803.02

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Solution

The fourth proportional to 215,057.25, 322,384.37 and 72,803.02 is: 109,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,057.25 : 322,384.37 = 72,803.02 : x
  2. Step 2: Convert to fraction form
    215,057.25/322,384.37 = 72,803.02/x
  3. Step 3: Cross multiply
    215,057.25x = 322,384.37 × 72,803.02
  4. Step 4: Simplify right side
    215,057.25x = 23,470,555,736.80
  5. Step 5: Solve for x
    x = 23,470,555,736.80/215,057.25
  6. Step 6: Final answer
    x = 109,136.31

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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.