Home / 259,823.80-389,735.70-169,622.20

Finding the Fourth Proportional to 259,823.80, 389,735.70 and 169,622.20

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Solution

The fourth proportional to 259,823.80, 389,735.70 and 169,622.20 is: 254,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,823.80 : 389,735.70 = 169,622.20 : x
  2. Step 2: Convert to fraction form
    259,823.80/389,735.70 = 169,622.20/x
  3. Step 3: Cross multiply
    259,823.80x = 389,735.70 × 169,622.20
  4. Step 4: Simplify right side
    259,823.80x = 66,107,826,852.54
  5. Step 5: Solve for x
    x = 66,107,826,852.54/259,823.80
  6. Step 6: Final answer
    x = 254,433.30

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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.