Home / 306,510.60-422,986.68-170,550.24

Finding the Fourth Proportional to 306,510.60, 422,986.68 and 170,550.24

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Solution

The fourth proportional to 306,510.60, 422,986.68 and 170,550.24 is: 235,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,510.60 : 422,986.68 = 170,550.24 : x
  2. Step 2: Convert to fraction form
    306,510.60/422,986.68 = 170,550.24/x
  3. Step 3: Cross multiply
    306,510.60x = 422,986.68 × 170,550.24
  4. Step 4: Simplify right side
    306,510.60x = 72,140,479,790.80
  5. Step 5: Solve for x
    x = 72,140,479,790.80/306,510.60
  6. Step 6: Final answer
    x = 235,360.47

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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.