Home / 251,984.52-347,742.81-138,807.36

Finding the Fourth Proportional to 251,984.52, 347,742.81 and 138,807.36

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Solution

The fourth proportional to 251,984.52, 347,742.81 and 138,807.36 is: 191,556.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,984.52 : 347,742.81 = 138,807.36 : x
  2. Step 2: Convert to fraction form
    251,984.52/347,742.81 = 138,807.36/x
  3. Step 3: Cross multiply
    251,984.52x = 347,742.81 × 138,807.36
  4. Step 4: Simplify right side
    251,984.52x = 48,269,261,415.08
  5. Step 5: Solve for x
    x = 48,269,261,415.08/251,984.52
  6. Step 6: Final answer
    x = 191,556.46

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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.