Home / 251,433.81-346,983.89-138,256.29

Finding the Fourth Proportional to 251,433.81, 346,983.89 and 138,256.29

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Solution

The fourth proportional to 251,433.81, 346,983.89 and 138,256.29 is: 190,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,433.81 : 346,983.89 = 138,256.29 : x
  2. Step 2: Convert to fraction form
    251,433.81/346,983.89 = 138,256.29/x
  3. Step 3: Cross multiply
    251,433.81x = 346,983.89 × 138,256.29
  4. Step 4: Simplify right side
    251,433.81x = 47,972,704,629.89
  5. Step 5: Solve for x
    x = 47,972,704,629.89/251,433.81
  6. Step 6: Final answer
    x = 190,796.55

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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.