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Finding the Fourth Proportional to 342,222.56, 472,270.27 and 189,252.85

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Solution

The fourth proportional to 342,222.56, 472,270.27 and 189,252.85 is: 261,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,222.56 : 472,270.27 = 189,252.85 : x
  2. Step 2: Convert to fraction form
    342,222.56/472,270.27 = 189,252.85/x
  3. Step 3: Cross multiply
    342,222.56x = 472,270.27 × 189,252.85
  4. Step 4: Simplify right side
    342,222.56x = 89,378,494,567.77
  5. Step 5: Solve for x
    x = 89,378,494,567.77/342,222.56
  6. Step 6: Final answer
    x = 261,170.67

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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.