Home / 251,340.36-346,850.82-138,170.40

Finding the Fourth Proportional to 251,340.36, 346,850.82 and 138,170.40

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Solution

The fourth proportional to 251,340.36, 346,850.82 and 138,170.40 is: 190,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,340.36 : 346,850.82 = 138,170.40 : x
  2. Step 2: Convert to fraction form
    251,340.36/346,850.82 = 138,170.40/x
  3. Step 3: Cross multiply
    251,340.36x = 346,850.82 × 138,170.40
  4. Step 4: Simplify right side
    251,340.36x = 47,924,516,539.73
  5. Step 5: Solve for x
    x = 47,924,516,539.73/251,340.36
  6. Step 6: Final answer
    x = 190,675.77

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1.5x scale

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.