Home / 259,941.20-389,255.70-170,711.60

Finding the Fourth Proportional to 259,941.20, 389,255.70 and 170,711.60

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Solution

The fourth proportional to 259,941.20, 389,255.70 and 170,711.60 is: 255,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,941.20 : 389,255.70 = 170,711.60 : x
  2. Step 2: Convert to fraction form
    259,941.20/389,255.70 = 170,711.60/x
  3. Step 3: Cross multiply
    259,941.20x = 389,255.70 × 170,711.60
  4. Step 4: Simplify right side
    259,941.20x = 66,450,463,356.12
  5. Step 5: Solve for x
    x = 66,450,463,356.12/259,941.20
  6. Step 6: Final answer
    x = 255,636.52

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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.