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Finding the Fourth Proportional to 347,407.54, 521,153.35 and 122,722

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Solution

The fourth proportional to 347,407.54, 521,153.35 and 122,722 is: 184,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,407.54 : 521,153.35 = 122,722 : x
  2. Step 2: Convert to fraction form
    347,407.54/521,153.35 = 122,722/x
  3. Step 3: Cross multiply
    347,407.54x = 521,153.35 × 122,722
  4. Step 4: Simplify right side
    347,407.54x = 63,956,981,418.70
  5. Step 5: Solve for x
    x = 63,956,981,418.70/347,407.54
  6. Step 6: Final answer
    x = 184,097.85

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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.