Home / 230,462.82-318,042.09-128,485.26

Finding the Fourth Proportional to 230,462.82, 318,042.09 and 128,485.26

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Solution

The fourth proportional to 230,462.82, 318,042.09 and 128,485.26 is: 177,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,462.82 : 318,042.09 = 128,485.26 : x
  2. Step 2: Convert to fraction form
    230,462.82/318,042.09 = 128,485.26/x
  3. Step 3: Cross multiply
    230,462.82x = 318,042.09 × 128,485.26
  4. Step 4: Simplify right side
    230,462.82x = 40,863,720,624.59
  5. Step 5: Solve for x
    x = 40,863,720,624.59/230,462.82
  6. Step 6: Final answer
    x = 177,311.55

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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.