Home / 319,850.06-479,642.46-130,181.69

Finding the Fourth Proportional to 319,850.06, 479,642.46 and 130,181.69

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Solution

The fourth proportional to 319,850.06, 479,642.46 and 130,181.69 is: 195,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,850.06 : 479,642.46 = 130,181.69 : x
  2. Step 2: Convert to fraction form
    319,850.06/479,642.46 = 130,181.69/x
  3. Step 3: Cross multiply
    319,850.06x = 479,642.46 × 130,181.69
  4. Step 4: Simplify right side
    319,850.06x = 62,440,666,749.48
  5. Step 5: Solve for x
    x = 62,440,666,749.48/319,850.06
  6. Step 6: Final answer
    x = 195,218.56

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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.