Home / 379,284.68-523,435.30-218,185.40

Finding the Fourth Proportional to 379,284.68, 523,435.30 and 218,185.40

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Solution

The fourth proportional to 379,284.68, 523,435.30 and 218,185.40 is: 301,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,284.68 : 523,435.30 = 218,185.40 : x
  2. Step 2: Convert to fraction form
    379,284.68/523,435.30 = 218,185.40/x
  3. Step 3: Cross multiply
    379,284.68x = 523,435.30 × 218,185.40
  4. Step 4: Simplify right side
    379,284.68x = 114,205,940,304.62
  5. Step 5: Solve for x
    x = 114,205,940,304.62/379,284.68
  6. Step 6: Final answer
    x = 301,108.76

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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.