Home / 262,931.40-394,534.80-120,819.60

Finding the Fourth Proportional to 262,931.40, 394,534.80 and 120,819.60

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Solution

The fourth proportional to 262,931.40, 394,534.80 and 120,819.60 is: 181,292.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,931.40 : 394,534.80 = 120,819.60 : x
  2. Step 2: Convert to fraction form
    262,931.40/394,534.80 = 120,819.60/x
  3. Step 3: Cross multiply
    262,931.40x = 394,534.80 × 120,819.60
  4. Step 4: Simplify right side
    262,931.40x = 47,667,536,722.08
  5. Step 5: Solve for x
    x = 47,667,536,722.08/262,931.40
  6. Step 6: Final answer
    x = 181,292.67

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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.