Home / 443,939.65-665,144.03-206,795.95

Finding the Fourth Proportional to 443,939.65, 665,144.03 and 206,795.95

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Solution

The fourth proportional to 443,939.65, 665,144.03 and 206,795.95 is: 309,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,939.65 : 665,144.03 = 206,795.95 : x
  2. Step 2: Convert to fraction form
    443,939.65/665,144.03 = 206,795.95/x
  3. Step 3: Cross multiply
    443,939.65x = 665,144.03 × 206,795.95
  4. Step 4: Simplify right side
    443,939.65x = 137,549,090,536.70
  5. Step 5: Solve for x
    x = 137,549,090,536.70/443,939.65
  6. Step 6: Final answer
    x = 309,837.36

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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.