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Finding the Fourth Proportional to 255,191.25, 352,163.93 and 142,014.09

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Solution

The fourth proportional to 255,191.25, 352,163.93 and 142,014.09 is: 195,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,191.25 : 352,163.93 = 142,014.09 : x
  2. Step 2: Convert to fraction form
    255,191.25/352,163.93 = 142,014.09/x
  3. Step 3: Cross multiply
    255,191.25x = 352,163.93 × 142,014.09
  4. Step 4: Simplify right side
    255,191.25x = 50,012,240,049.77
  5. Step 5: Solve for x
    x = 50,012,240,049.77/255,191.25
  6. Step 6: Final answer
    x = 195,979.45

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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.