Home / 263,017.28-394,575.42-85,575.04

Finding the Fourth Proportional to 263,017.28, 394,575.42 and 85,575.04

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Solution

The fourth proportional to 263,017.28, 394,575.42 and 85,575.04 is: 128,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,017.28 : 394,575.42 = 85,575.04 : x
  2. Step 2: Convert to fraction form
    263,017.28/394,575.42 = 85,575.04/x
  3. Step 3: Cross multiply
    263,017.28x = 394,575.42 × 85,575.04
  4. Step 4: Simplify right side
    263,017.28x = 33,765,807,349.52
  5. Step 5: Solve for x
    x = 33,765,807,349.52/263,017.28
  6. Step 6: Final answer
    x = 128,378.67

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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.