Home / 306,242.37-422,633.57-170,306.69

Finding the Fourth Proportional to 306,242.37, 422,633.57 and 170,306.69

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Solution

The fourth proportional to 306,242.37, 422,633.57 and 170,306.69 is: 235,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,242.37 : 422,633.57 = 170,306.69 : x
  2. Step 2: Convert to fraction form
    306,242.37/422,633.57 = 170,306.69/x
  3. Step 3: Cross multiply
    306,242.37x = 422,633.57 × 170,306.69
  4. Step 4: Simplify right side
    306,242.37x = 71,977,321,424.88
  5. Step 5: Solve for x
    x = 71,977,321,424.88/306,242.37
  6. Step 6: Final answer
    x = 235,033.84

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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.