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Finding the Fourth Proportional to 374,529, 561,867.62 and 121,793.20

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Solution

The fourth proportional to 374,529, 561,867.62 and 121,793.20 is: 182,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,529 : 561,867.62 = 121,793.20 : x
  2. Step 2: Convert to fraction form
    374,529/561,867.62 = 121,793.20/x
  3. Step 3: Cross multiply
    374,529x = 561,867.62 × 121,793.20
  4. Step 4: Simplify right side
    374,529x = 68,431,655,416.18
  5. Step 5: Solve for x
    x = 68,431,655,416.18/374,529
  6. Step 6: Final answer
    x = 182,713.90

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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.