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Finding the Fourth Proportional to 260,762.52, 391,330.26 and 111,107.64

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Solution

The fourth proportional to 260,762.52, 391,330.26 and 111,107.64 is: 166,740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,762.52 : 391,330.26 = 111,107.64 : x
  2. Step 2: Convert to fraction form
    260,762.52/391,330.26 = 111,107.64/x
  3. Step 3: Cross multiply
    260,762.52x = 391,330.26 × 111,107.64
  4. Step 4: Simplify right side
    260,762.52x = 43,479,781,649.19
  5. Step 5: Solve for x
    x = 43,479,781,649.19/260,762.52
  6. Step 6: Final answer
    x = 166,740.92

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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.