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Finding the Fourth Proportional to 374,215.70, 561,214.20 and 134,301.80

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Solution

The fourth proportional to 374,215.70, 561,214.20 and 134,301.80 is: 201,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,215.70 : 561,214.20 = 134,301.80 : x
  2. Step 2: Convert to fraction form
    374,215.70/561,214.20 = 134,301.80/x
  3. Step 3: Cross multiply
    374,215.70x = 561,214.20 × 134,301.80
  4. Step 4: Simplify right side
    374,215.70x = 75,372,077,245.56
  5. Step 5: Solve for x
    x = 75,372,077,245.56/374,215.70
  6. Step 6: Final answer
    x = 201,413.46

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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.