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Finding the Fourth Proportional to 374,785.54, 561,277.38 and 214,375.30

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Solution

The fourth proportional to 374,785.54, 561,277.38 and 214,375.30 is: 321,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,785.54 : 561,277.38 = 214,375.30 : x
  2. Step 2: Convert to fraction form
    374,785.54/561,277.38 = 214,375.30/x
  3. Step 3: Cross multiply
    374,785.54x = 561,277.38 × 214,375.30
  4. Step 4: Simplify right side
    374,785.54x = 120,324,006,720.71
  5. Step 5: Solve for x
    x = 120,324,006,720.71/374,785.54
  6. Step 6: Final answer
    x = 321,047.62

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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.