Home / 262,981.44-394,200-129,683.52

Finding the Fourth Proportional to 262,981.44, 394,200 and 129,683.52

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Solution

The fourth proportional to 262,981.44, 394,200 and 129,683.52 is: 194,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,981.44 : 394,200 = 129,683.52 : x
  2. Step 2: Convert to fraction form
    262,981.44/394,200 = 129,683.52/x
  3. Step 3: Cross multiply
    262,981.44x = 394,200 × 129,683.52
  4. Step 4: Simplify right side
    262,981.44x = 51,121,243,584
  5. Step 5: Solve for x
    x = 51,121,243,584/262,981.44
  6. Step 6: Final answer
    x = 194,391.07

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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.