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Finding the Fourth Proportional to 251,254.88, 346,745.01 and 142,380.33

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Solution

The fourth proportional to 251,254.88, 346,745.01 and 142,380.33 is: 196,492.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,254.88 : 346,745.01 = 142,380.33 : x
  2. Step 2: Convert to fraction form
    251,254.88/346,745.01 = 142,380.33/x
  3. Step 3: Cross multiply
    251,254.88x = 346,745.01 × 142,380.33
  4. Step 4: Simplify right side
    251,254.88x = 49,369,668,949.65
  5. Step 5: Solve for x
    x = 49,369,668,949.65/251,254.88
  6. Step 6: Final answer
    x = 196,492.38

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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.