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Finding the Fourth Proportional to 260,014.70, 389,906.85 and 119,816.30

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Solution

The fourth proportional to 260,014.70, 389,906.85 and 119,816.30 is: 179,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,014.70 : 389,906.85 = 119,816.30 : x
  2. Step 2: Convert to fraction form
    260,014.70/389,906.85 = 119,816.30/x
  3. Step 3: Cross multiply
    260,014.70x = 389,906.85 × 119,816.30
  4. Step 4: Simplify right side
    260,014.70x = 46,717,196,111.66
  5. Step 5: Solve for x
    x = 46,717,196,111.66/260,014.70
  6. Step 6: Final answer
    x = 179,671.37

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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.