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Finding the Fourth Proportional to 250,272.35, 345,291.35 and 142,766.72

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Solution

The fourth proportional to 250,272.35, 345,291.35 and 142,766.72 is: 196,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,272.35 : 345,291.35 = 142,766.72 : x
  2. Step 2: Convert to fraction form
    250,272.35/345,291.35 = 142,766.72/x
  3. Step 3: Cross multiply
    250,272.35x = 345,291.35 × 142,766.72
  4. Step 4: Simplify right side
    250,272.35x = 49,296,111,043.58
  5. Step 5: Solve for x
    x = 49,296,111,043.58/250,272.35
  6. Step 6: Final answer
    x = 196,969.87

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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.