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Finding the Fourth Proportional to 347,405.92, 521,150.91 and 122,720.37

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Solution

The fourth proportional to 347,405.92, 521,150.91 and 122,720.37 is: 184,095.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,405.92 : 521,150.91 = 122,720.37 : x
  2. Step 2: Convert to fraction form
    347,405.92/521,150.91 = 122,720.37/x
  3. Step 3: Cross multiply
    347,405.92x = 521,150.91 × 122,720.37
  4. Step 4: Simplify right side
    347,405.92x = 63,955,834,455.35
  5. Step 5: Solve for x
    x = 63,955,834,455.35/347,405.92
  6. Step 6: Final answer
    x = 184,095.41

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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.