Home / 260,791.20-391,089.60-92,246.40

Finding the Fourth Proportional to 260,791.20, 391,089.60 and 92,246.40

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Solution

The fourth proportional to 260,791.20, 391,089.60 and 92,246.40 is: 138,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,791.20 : 391,089.60 = 92,246.40 : x
  2. Step 2: Convert to fraction form
    260,791.20/391,089.60 = 92,246.40/x
  3. Step 3: Cross multiply
    260,791.20x = 391,089.60 × 92,246.40
  4. Step 4: Simplify right side
    260,791.20x = 36,076,607,677.44
  5. Step 5: Solve for x
    x = 36,076,607,677.44/260,791.20
  6. Step 6: Final answer
    x = 138,335.22

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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.