Home / 245,584.37-338,905.92-138,154.49

Finding the Fourth Proportional to 245,584.37, 338,905.92 and 138,154.49

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Solution

The fourth proportional to 245,584.37, 338,905.92 and 138,154.49 is: 190,652.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,584.37 : 338,905.92 = 138,154.49 : x
  2. Step 2: Convert to fraction form
    245,584.37/338,905.92 = 138,154.49/x
  3. Step 3: Cross multiply
    245,584.37x = 338,905.92 × 138,154.49
  4. Step 4: Simplify right side
    245,584.37x = 46,821,372,841.05
  5. Step 5: Solve for x
    x = 46,821,372,841.05/245,584.37
  6. Step 6: Final answer
    x = 190,652.91

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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.