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Finding the Fourth Proportional to 258,164.92, 387,399.07 and 108,393.69

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Solution

The fourth proportional to 258,164.92, 387,399.07 and 108,393.69 is: 162,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,164.92 : 387,399.07 = 108,393.69 : x
  2. Step 2: Convert to fraction form
    258,164.92/387,399.07 = 108,393.69/x
  3. Step 3: Cross multiply
    258,164.92x = 387,399.07 × 108,393.69
  4. Step 4: Simplify right side
    258,164.92x = 41,991,614,699.87
  5. Step 5: Solve for x
    x = 41,991,614,699.87/258,164.92
  6. Step 6: Final answer
    x = 162,654.23

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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.