Home / 220,367.21-304,171.73-143,898.19

Finding the Fourth Proportional to 220,367.21, 304,171.73 and 143,898.19

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Solution

The fourth proportional to 220,367.21, 304,171.73 and 143,898.19 is: 198,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,367.21 : 304,171.73 = 143,898.19 : x
  2. Step 2: Convert to fraction form
    220,367.21/304,171.73 = 143,898.19/x
  3. Step 3: Cross multiply
    220,367.21x = 304,171.73 × 143,898.19
  4. Step 4: Simplify right side
    220,367.21x = 43,769,760,455.87
  5. Step 5: Solve for x
    x = 43,769,760,455.87/220,367.21
  6. Step 6: Final answer
    x = 198,621.93

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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.