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Finding the Fourth Proportional to 260,063.70, 389,512.35 and 260,063.70

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Solution

The fourth proportional to 260,063.70, 389,512.35 and 260,063.70 is: 389,512.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,063.70 : 389,512.35 = 260,063.70 : x
  2. Step 2: Convert to fraction form
    260,063.70/389,512.35 = 260,063.70/x
  3. Step 3: Cross multiply
    260,063.70x = 389,512.35 × 260,063.70
  4. Step 4: Simplify right side
    260,063.70x = 101,298,022,936.70
  5. Step 5: Solve for x
    x = 101,298,022,936.70/260,063.70
  6. Step 6: Final answer
    x = 389,512.35

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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.