Home / 245,585.37-338,907.30-138,155.49

Finding the Fourth Proportional to 245,585.37, 338,907.30 and 138,155.49

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Solution

The fourth proportional to 245,585.37, 338,907.30 and 138,155.49 is: 190,654.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,585.37 : 338,907.30 = 138,155.49 : x
  2. Step 2: Convert to fraction form
    245,585.37/338,907.30 = 138,155.49/x
  3. Step 3: Cross multiply
    245,585.37x = 338,907.30 × 138,155.49
  4. Step 4: Simplify right side
    245,585.37x = 46,821,904,096.08
  5. Step 5: Solve for x
    x = 46,821,904,096.08/245,585.37
  6. Step 6: Final answer
    x = 190,654.29

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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.