Home / 402,361.24-555,267.72-221,084.44

Finding the Fourth Proportional to 402,361.24, 555,267.72 and 221,084.44

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Solution

The fourth proportional to 402,361.24, 555,267.72 and 221,084.44 is: 305,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,361.24 : 555,267.72 = 221,084.44 : x
  2. Step 2: Convert to fraction form
    402,361.24/555,267.72 = 221,084.44/x
  3. Step 3: Cross multiply
    402,361.24x = 555,267.72 × 221,084.44
  4. Step 4: Simplify right side
    402,361.24x = 122,761,052,926.28
  5. Step 5: Solve for x
    x = 122,761,052,926.28/402,361.24
  6. Step 6: Final answer
    x = 305,101.59

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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.