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Finding the Fourth Proportional to 262,709.55, 394,119.68 and 85,202.73

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Solution

The fourth proportional to 262,709.55, 394,119.68 and 85,202.73 is: 127,822.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,709.55 : 394,119.68 = 85,202.73 : x
  2. Step 2: Convert to fraction form
    262,709.55/394,119.68 = 85,202.73/x
  3. Step 3: Cross multiply
    262,709.55x = 394,119.68 × 85,202.73
  4. Step 4: Simplify right side
    262,709.55x = 33,580,072,256.71
  5. Step 5: Solve for x
    x = 33,580,072,256.71/262,709.55
  6. Step 6: Final answer
    x = 127,822.05

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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.