Home / 251,966.64-347,713.98-138,789.39

Finding the Fourth Proportional to 251,966.64, 347,713.98 and 138,789.39

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Solution

The fourth proportional to 251,966.64, 347,713.98 and 138,789.39 is: 191,529.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,966.64 : 347,713.98 = 138,789.39 : x
  2. Step 2: Convert to fraction form
    251,966.64/347,713.98 = 138,789.39/x
  3. Step 3: Cross multiply
    251,966.64x = 347,713.98 × 138,789.39
  4. Step 4: Simplify right side
    251,966.64x = 48,259,009,712.45
  5. Step 5: Solve for x
    x = 48,259,009,712.45/251,966.64
  6. Step 6: Final answer
    x = 191,529.36

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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.