Home / 221,466.23-305,619.13-120,864.95

Finding the Fourth Proportional to 221,466.23, 305,619.13 and 120,864.95

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Solution

The fourth proportional to 221,466.23, 305,619.13 and 120,864.95 is: 166,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,466.23 : 305,619.13 = 120,864.95 : x
  2. Step 2: Convert to fraction form
    221,466.23/305,619.13 = 120,864.95/x
  3. Step 3: Cross multiply
    221,466.23x = 305,619.13 × 120,864.95
  4. Step 4: Simplify right side
    221,466.23x = 36,938,640,866.49
  5. Step 5: Solve for x
    x = 36,938,640,866.49/221,466.23
  6. Step 6: Final answer
    x = 166,791.30

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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.