Home / 227,020.80-342,231.36-211,797.12

Finding the Fourth Proportional to 227,020.80, 342,231.36 and 211,797.12

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Solution

The fourth proportional to 227,020.80, 342,231.36 and 211,797.12 is: 319,281.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,020.80 : 342,231.36 = 211,797.12 : x
  2. Step 2: Convert to fraction form
    227,020.80/342,231.36 = 211,797.12/x
  3. Step 3: Cross multiply
    227,020.80x = 342,231.36 × 211,797.12
  4. Step 4: Simplify right side
    227,020.80x = 72,483,616,421.68
  5. Step 5: Solve for x
    x = 72,483,616,421.68/227,020.80
  6. Step 6: Final answer
    x = 319,281.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.