Home / 318,764.31-439,896.06-191,442.03

Finding the Fourth Proportional to 318,764.31, 439,896.06 and 191,442.03

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Solution

The fourth proportional to 318,764.31, 439,896.06 and 191,442.03 is: 264,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,764.31 : 439,896.06 = 191,442.03 : x
  2. Step 2: Convert to fraction form
    318,764.31/439,896.06 = 191,442.03/x
  3. Step 3: Cross multiply
    318,764.31x = 439,896.06 × 191,442.03
  4. Step 4: Simplify right side
    318,764.31x = 84,214,594,715.40
  5. Step 5: Solve for x
    x = 84,214,594,715.40/318,764.31
  6. Step 6: Final answer
    x = 264,190.79

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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.