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Finding the Fourth Proportional to 255,296.20, 352,079.40 and 159,811.60

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Solution

The fourth proportional to 255,296.20, 352,079.40 and 159,811.60 is: 220,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,296.20 : 352,079.40 = 159,811.60 : x
  2. Step 2: Convert to fraction form
    255,296.20/352,079.40 = 159,811.60/x
  3. Step 3: Cross multiply
    255,296.20x = 352,079.40 × 159,811.60
  4. Step 4: Simplify right side
    255,296.20x = 56,266,372,241.04
  5. Step 5: Solve for x
    x = 56,266,372,241.04/255,296.20
  6. Step 6: Final answer
    x = 220,396.43

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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.