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Finding the Fourth Proportional to 149,998.40, 224,738.40 and 126,670.40

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Solution

The fourth proportional to 149,998.40, 224,738.40 and 126,670.40 is: 189,786.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,998.40 : 224,738.40 = 126,670.40 : x
  2. Step 2: Convert to fraction form
    149,998.40/224,738.40 = 126,670.40/x
  3. Step 3: Cross multiply
    149,998.40x = 224,738.40 × 126,670.40
  4. Step 4: Simplify right side
    149,998.40x = 28,467,703,023.36
  5. Step 5: Solve for x
    x = 28,467,703,023.36/149,998.40
  6. Step 6: Final answer
    x = 189,786.71

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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.