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Finding the Fourth Proportional to 260,946.90, 391,306.38 and 92,411.22

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Solution

The fourth proportional to 260,946.90, 391,306.38 and 92,411.22 is: 138,576.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,946.90 : 391,306.38 = 92,411.22 : x
  2. Step 2: Convert to fraction form
    260,946.90/391,306.38 = 92,411.22/x
  3. Step 3: Cross multiply
    260,946.90x = 391,306.38 × 92,411.22
  4. Step 4: Simplify right side
    260,946.90x = 36,161,099,969.58
  5. Step 5: Solve for x
    x = 36,161,099,969.58/260,946.90
  6. Step 6: Final answer
    x = 138,576.47

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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.