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Finding the Fourth Proportional to 234,855.75, 324,091.48 and 127,421.67

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Solution

The fourth proportional to 234,855.75, 324,091.48 and 127,421.67 is: 175,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,855.75 : 324,091.48 = 127,421.67 : x
  2. Step 2: Convert to fraction form
    234,855.75/324,091.48 = 127,421.67/x
  3. Step 3: Cross multiply
    234,855.75x = 324,091.48 × 127,421.67
  4. Step 4: Simplify right side
    234,855.75x = 41,296,277,614.37
  5. Step 5: Solve for x
    x = 41,296,277,614.37/234,855.75
  6. Step 6: Final answer
    x = 175,836.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.