Home / 319,460.55-440,997.26-206,338.47

Finding the Fourth Proportional to 319,460.55, 440,997.26 and 206,338.47

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Solution

The fourth proportional to 319,460.55, 440,997.26 and 206,338.47 is: 284,838.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,460.55 : 440,997.26 = 206,338.47 : x
  2. Step 2: Convert to fraction form
    319,460.55/440,997.26 = 206,338.47/x
  3. Step 3: Cross multiply
    319,460.55x = 440,997.26 × 206,338.47
  4. Step 4: Simplify right side
    319,460.55x = 90,994,698,870.90
  5. Step 5: Solve for x
    x = 90,994,698,870.90/319,460.55
  6. Step 6: Final answer
    x = 284,838.61

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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.