Home / 245,928.74-339,382.86-138,500.60

Finding the Fourth Proportional to 245,928.74, 339,382.86 and 138,500.60

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Solution

The fourth proportional to 245,928.74, 339,382.86 and 138,500.60 is: 191,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,928.74 : 339,382.86 = 138,500.60 : x
  2. Step 2: Convert to fraction form
    245,928.74/339,382.86 = 138,500.60/x
  3. Step 3: Cross multiply
    245,928.74x = 339,382.86 × 138,500.60
  4. Step 4: Simplify right side
    245,928.74x = 47,004,729,739.72
  5. Step 5: Solve for x
    x = 47,004,729,739.72/245,928.74
  6. Step 6: Final answer
    x = 191,131.50

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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.