Home / 206,438.20-309,666.30-56,674.60

Finding the Fourth Proportional to 206,438.20, 309,666.30 and 56,674.60

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Solution

The fourth proportional to 206,438.20, 309,666.30 and 56,674.60 is: 85,014.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,438.20 : 309,666.30 = 56,674.60 : x
  2. Step 2: Convert to fraction form
    206,438.20/309,666.30 = 56,674.60/x
  3. Step 3: Cross multiply
    206,438.20x = 309,666.30 × 56,674.60
  4. Step 4: Simplify right side
    206,438.20x = 17,550,213,685.98
  5. Step 5: Solve for x
    x = 17,550,213,685.98/206,438.20
  6. Step 6: Final answer
    x = 85,014.37

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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.