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Finding the Fourth Proportional to 251,682.77, 347,322.02 and 138,505.52

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Solution

The fourth proportional to 251,682.77, 347,322.02 and 138,505.52 is: 191,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,682.77 : 347,322.02 = 138,505.52 : x
  2. Step 2: Convert to fraction form
    251,682.77/347,322.02 = 138,505.52/x
  3. Step 3: Cross multiply
    251,682.77x = 347,322.02 × 138,505.52
  4. Step 4: Simplify right side
    251,682.77x = 48,106,014,558.41
  5. Step 5: Solve for x
    x = 48,106,014,558.41/251,682.77
  6. Step 6: Final answer
    x = 191,137.50

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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.