Home / 251,357.21-346,864.16-138,179.15

Finding the Fourth Proportional to 251,357.21, 346,864.16 and 138,179.15

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Solution

The fourth proportional to 251,357.21, 346,864.16 and 138,179.15 is: 190,682.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,357.21 : 346,864.16 = 138,179.15 : x
  2. Step 2: Convert to fraction form
    251,357.21/346,864.16 = 138,179.15/x
  3. Step 3: Cross multiply
    251,357.21x = 346,864.16 × 138,179.15
  4. Step 4: Simplify right side
    251,357.21x = 47,929,392,369.05
  5. Step 5: Solve for x
    x = 47,929,392,369.05/251,357.21
  6. Step 6: Final answer
    x = 190,682.39

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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.