Home / 251,277.75-346,763.30-138,100.50

Finding the Fourth Proportional to 251,277.75, 346,763.30 and 138,100.50

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Solution

The fourth proportional to 251,277.75, 346,763.30 and 138,100.50 is: 190,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,277.75 : 346,763.30 = 138,100.50 : x
  2. Step 2: Convert to fraction form
    251,277.75/346,763.30 = 138,100.50/x
  3. Step 3: Cross multiply
    251,277.75x = 346,763.30 × 138,100.50
  4. Step 4: Simplify right side
    251,277.75x = 47,888,185,111.65
  5. Step 5: Solve for x
    x = 47,888,185,111.65/251,277.75
  6. Step 6: Final answer
    x = 190,578.69

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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.