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Finding the Fourth Proportional to 432,234.92, 648,448.79 and 132,745.73

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Solution

The fourth proportional to 432,234.92, 648,448.79 and 132,745.73 is: 199,148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,234.92 : 648,448.79 = 132,745.73 : x
  2. Step 2: Convert to fraction form
    432,234.92/648,448.79 = 132,745.73/x
  3. Step 3: Cross multiply
    432,234.92x = 648,448.79 × 132,745.73
  4. Step 4: Simplify right side
    432,234.92x = 86,078,804,090.19
  5. Step 5: Solve for x
    x = 86,078,804,090.19/432,234.92
  6. Step 6: Final answer
    x = 199,148.19

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1.5x scale

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.