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Finding the Fourth Proportional to 207,879.56, 286,770.65 and 134,266.67

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Solution

The fourth proportional to 207,879.56, 286,770.65 and 134,266.67 is: 185,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,879.56 : 286,770.65 = 134,266.67 : x
  2. Step 2: Convert to fraction form
    207,879.56/286,770.65 = 134,266.67/x
  3. Step 3: Cross multiply
    207,879.56x = 286,770.65 × 134,266.67
  4. Step 4: Simplify right side
    207,879.56x = 38,503,738,124.05
  5. Step 5: Solve for x
    x = 38,503,738,124.05/207,879.56
  6. Step 6: Final answer
    x = 185,221.38

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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.