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Finding the Fourth Proportional to 262,222.80, 393,431.40 and 252,502.80

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Solution

The fourth proportional to 262,222.80, 393,431.40 and 252,502.80 is: 378,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,222.80 : 393,431.40 = 252,502.80 : x
  2. Step 2: Convert to fraction form
    262,222.80/393,431.40 = 252,502.80/x
  3. Step 3: Cross multiply
    262,222.80x = 393,431.40 × 252,502.80
  4. Step 4: Simplify right side
    262,222.80x = 99,342,530,107.92
  5. Step 5: Solve for x
    x = 99,342,530,107.92/262,222.80
  6. Step 6: Final answer
    x = 378,847.80

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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.