Home / 221,984.20-333,332.70-205,611.40

Finding the Fourth Proportional to 221,984.20, 333,332.70 and 205,611.40

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Solution

The fourth proportional to 221,984.20, 333,332.70 and 205,611.40 is: 308,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,984.20 : 333,332.70 = 205,611.40 : x
  2. Step 2: Convert to fraction form
    221,984.20/333,332.70 = 205,611.40/x
  3. Step 3: Cross multiply
    221,984.20x = 333,332.70 × 205,611.40
  4. Step 4: Simplify right side
    221,984.20x = 68,537,003,112.78
  5. Step 5: Solve for x
    x = 68,537,003,112.78/221,984.20
  6. Step 6: Final answer
    x = 308,747.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.