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Finding the Fourth Proportional to 260,570.30, 391,042.37 and 110,915.73

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Solution

The fourth proportional to 260,570.30, 391,042.37 and 110,915.73 is: 166,453.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,570.30 : 391,042.37 = 110,915.73 : x
  2. Step 2: Convert to fraction form
    260,570.30/391,042.37 = 110,915.73/x
  3. Step 3: Cross multiply
    260,570.30x = 391,042.37 × 110,915.73
  4. Step 4: Simplify right side
    260,570.30x = 43,372,750,206.77
  5. Step 5: Solve for x
    x = 43,372,750,206.77/260,570.30
  6. Step 6: Final answer
    x = 166,453.16

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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.