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Finding the Fourth Proportional to 374,138.92, 561,191.37 and 137,464.21

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Solution

The fourth proportional to 374,138.92, 561,191.37 and 137,464.21 is: 206,190.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,138.92 : 561,191.37 = 137,464.21 : x
  2. Step 2: Convert to fraction form
    374,138.92/561,191.37 = 137,464.21/x
  3. Step 3: Cross multiply
    374,138.92x = 561,191.37 × 137,464.21
  4. Step 4: Simplify right side
    374,138.92x = 77,143,728,335.87
  5. Step 5: Solve for x
    x = 77,143,728,335.87/374,138.92
  6. Step 6: Final answer
    x = 206,190.07

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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.