Home / 305,737.20-421,620.39-237,634.02

Finding the Fourth Proportional to 305,737.20, 421,620.39 and 237,634.02

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Solution

The fourth proportional to 305,737.20, 421,620.39 and 237,634.02 is: 327,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,737.20 : 421,620.39 = 237,634.02 : x
  2. Step 2: Convert to fraction form
    305,737.20/421,620.39 = 237,634.02/x
  3. Step 3: Cross multiply
    305,737.20x = 421,620.39 × 237,634.02
  4. Step 4: Simplify right side
    305,737.20x = 100,191,348,189.67
  5. Step 5: Solve for x
    x = 100,191,348,189.67/305,737.20
  6. Step 6: Final answer
    x = 327,704.15

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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.