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Finding the Fourth Proportional to 262,886.40, 394,329.60 and 255,110.40

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Solution

The fourth proportional to 262,886.40, 394,329.60 and 255,110.40 is: 382,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,886.40 : 394,329.60 = 255,110.40 : x
  2. Step 2: Convert to fraction form
    262,886.40/394,329.60 = 255,110.40/x
  3. Step 3: Cross multiply
    262,886.40x = 394,329.60 × 255,110.40
  4. Step 4: Simplify right side
    262,886.40x = 100,597,581,987.84
  5. Step 5: Solve for x
    x = 100,597,581,987.84/262,886.40
  6. Step 6: Final answer
    x = 382,665.60

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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.