Home / 245,764.44-339,087.06-138,328.20

Finding the Fourth Proportional to 245,764.44, 339,087.06 and 138,328.20

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Solution

The fourth proportional to 245,764.44, 339,087.06 and 138,328.20 is: 190,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,764.44 : 339,087.06 = 138,328.20 : x
  2. Step 2: Convert to fraction form
    245,764.44/339,087.06 = 138,328.20/x
  3. Step 3: Cross multiply
    245,764.44x = 339,087.06 × 138,328.20
  4. Step 4: Simplify right side
    245,764.44x = 46,905,302,653.09
  5. Step 5: Solve for x
    x = 46,905,302,653.09/245,764.44
  6. Step 6: Final answer
    x = 190,854.72

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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.