Home / 245,756.44-339,076.02-138,320.20

Finding the Fourth Proportional to 245,756.44, 339,076.02 and 138,320.20

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Solution

The fourth proportional to 245,756.44, 339,076.02 and 138,320.20 is: 190,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,756.44 : 339,076.02 = 138,320.20 : x
  2. Step 2: Convert to fraction form
    245,756.44/339,076.02 = 138,320.20/x
  3. Step 3: Cross multiply
    245,756.44x = 339,076.02 × 138,320.20
  4. Step 4: Simplify right side
    245,756.44x = 46,901,062,901.60
  5. Step 5: Solve for x
    x = 46,901,062,901.60/245,756.44
  6. Step 6: Final answer
    x = 190,843.68

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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.