Home / 262,107.09-393,160.98-79,739.46

Finding the Fourth Proportional to 262,107.09, 393,160.98 and 79,739.46

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Solution

The fourth proportional to 262,107.09, 393,160.98 and 79,739.46 is: 119,609.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,107.09 : 393,160.98 = 79,739.46 : x
  2. Step 2: Convert to fraction form
    262,107.09/393,160.98 = 79,739.46/x
  3. Step 3: Cross multiply
    262,107.09x = 393,160.98 × 79,739.46
  4. Step 4: Simplify right side
    262,107.09x = 31,350,444,238.27
  5. Step 5: Solve for x
    x = 31,350,444,238.27/262,107.09
  6. Step 6: Final answer
    x = 119,609.29

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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.