Home / 220,456.21-304,228.31-122,338.46

Finding the Fourth Proportional to 220,456.21, 304,228.31 and 122,338.46

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Solution

The fourth proportional to 220,456.21, 304,228.31 and 122,338.46 is: 168,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,456.21 : 304,228.31 = 122,338.46 : x
  2. Step 2: Convert to fraction form
    220,456.21/304,228.31 = 122,338.46/x
  3. Step 3: Cross multiply
    220,456.21x = 304,228.31 × 122,338.46
  4. Step 4: Simplify right side
    220,456.21x = 37,218,823,541.45
  5. Step 5: Solve for x
    x = 37,218,823,541.45/220,456.21
  6. Step 6: Final answer
    x = 168,826.38

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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.