Home / 259,716.70-389,587.20-82,237.60

Finding the Fourth Proportional to 259,716.70, 389,587.20 and 82,237.60

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Solution

The fourth proportional to 259,716.70, 389,587.20 and 82,237.60 is: 123,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,716.70 : 389,587.20 = 82,237.60 : x
  2. Step 2: Convert to fraction form
    259,716.70/389,587.20 = 82,237.60/x
  3. Step 3: Cross multiply
    259,716.70x = 389,587.20 × 82,237.60
  4. Step 4: Simplify right side
    259,716.70x = 32,038,716,318.72
  5. Step 5: Solve for x
    x = 32,038,716,318.72/259,716.70
  6. Step 6: Final answer
    x = 123,360.25

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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.