Home / 206,257.85-309,387.02-56,499.43

Finding the Fourth Proportional to 206,257.85, 309,387.02 and 56,499.43

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Solution

The fourth proportional to 206,257.85, 309,387.02 and 56,499.43 is: 84,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,257.85 : 309,387.02 = 56,499.43 : x
  2. Step 2: Convert to fraction form
    206,257.85/309,387.02 = 56,499.43/x
  3. Step 3: Cross multiply
    206,257.85x = 309,387.02 × 56,499.43
  4. Step 4: Simplify right side
    206,257.85x = 17,480,190,807.38
  5. Step 5: Solve for x
    x = 17,480,190,807.38/206,257.85
  6. Step 6: Final answer
    x = 84,749.21

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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.