Home / 260,043.20-389,408.70-207,555.20

Finding the Fourth Proportional to 260,043.20, 389,408.70 and 207,555.20

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Solution

The fourth proportional to 260,043.20, 389,408.70 and 207,555.20 is: 310,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,043.20 : 389,408.70 = 207,555.20 : x
  2. Step 2: Convert to fraction form
    260,043.20/389,408.70 = 207,555.20/x
  3. Step 3: Cross multiply
    260,043.20x = 389,408.70 × 207,555.20
  4. Step 4: Simplify right side
    260,043.20x = 80,823,800,610.24
  5. Step 5: Solve for x
    x = 80,823,800,610.24/260,043.20
  6. Step 6: Final answer
    x = 310,809.13

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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.