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Finding the Fourth Proportional to 374,453.50, 561,680.25 and 125,135.50

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Solution

The fourth proportional to 374,453.50, 561,680.25 and 125,135.50 is: 187,703.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,453.50 : 561,680.25 = 125,135.50 : x
  2. Step 2: Convert to fraction form
    374,453.50/561,680.25 = 125,135.50/x
  3. Step 3: Cross multiply
    374,453.50x = 561,680.25 × 125,135.50
  4. Step 4: Simplify right side
    374,453.50x = 70,286,138,923.88
  5. Step 5: Solve for x
    x = 70,286,138,923.88/374,453.50
  6. Step 6: Final answer
    x = 187,703.25

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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.