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Finding the Fourth Proportional to 260,112.60, 389,877.30 and 110,327.40

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Solution

The fourth proportional to 260,112.60, 389,877.30 and 110,327.40 is: 165,367.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,112.60 : 389,877.30 = 110,327.40 : x
  2. Step 2: Convert to fraction form
    260,112.60/389,877.30 = 110,327.40/x
  3. Step 3: Cross multiply
    260,112.60x = 389,877.30 × 110,327.40
  4. Step 4: Simplify right side
    260,112.60x = 43,014,148,828.02
  5. Step 5: Solve for x
    x = 43,014,148,828.02/260,112.60
  6. Step 6: Final answer
    x = 165,367.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.