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Finding the Fourth Proportional to 215,345.92, 323,048.43 and 73,153.03

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Solution

The fourth proportional to 215,345.92, 323,048.43 and 73,153.03 is: 109,739.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,345.92 : 323,048.43 = 73,153.03 : x
  2. Step 2: Convert to fraction form
    215,345.92/323,048.43 = 73,153.03/x
  3. Step 3: Cross multiply
    215,345.92x = 323,048.43 × 73,153.03
  4. Step 4: Simplify right side
    215,345.92x = 23,631,970,586.51
  5. Step 5: Solve for x
    x = 23,631,970,586.51/215,345.92
  6. Step 6: Final answer
    x = 109,739.58

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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.