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Finding the Fourth Proportional to 323,838.06, 485,749.80 and 146,297.40

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Solution

The fourth proportional to 323,838.06, 485,749.80 and 146,297.40 is: 219,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,838.06 : 485,749.80 = 146,297.40 : x
  2. Step 2: Convert to fraction form
    323,838.06/485,749.80 = 146,297.40/x
  3. Step 3: Cross multiply
    323,838.06x = 485,749.80 × 146,297.40
  4. Step 4: Simplify right side
    323,838.06x = 71,063,932,790.52
  5. Step 5: Solve for x
    x = 71,063,932,790.52/323,838.06
  6. Step 6: Final answer
    x = 219,442.81

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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.