Home / 340,939.81-470,382.72-220,162.73

Finding the Fourth Proportional to 340,939.81, 470,382.72 and 220,162.73

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Solution

The fourth proportional to 340,939.81, 470,382.72 and 220,162.73 is: 303,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,939.81 : 470,382.72 = 220,162.73 : x
  2. Step 2: Convert to fraction form
    340,939.81/470,382.72 = 220,162.73/x
  3. Step 3: Cross multiply
    340,939.81x = 470,382.72 × 220,162.73
  4. Step 4: Simplify right side
    340,939.81x = 103,560,743,780.03
  5. Step 5: Solve for x
    x = 103,560,743,780.03/340,939.81
  6. Step 6: Final answer
    x = 303,750.81

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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.