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Finding the Fourth Proportional to 262,080.81, 392,840.87 and 135,593.73

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Solution

The fourth proportional to 262,080.81, 392,840.87 and 135,593.73 is: 203,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,080.81 : 392,840.87 = 135,593.73 : x
  2. Step 2: Convert to fraction form
    262,080.81/392,840.87 = 135,593.73/x
  3. Step 3: Cross multiply
    262,080.81x = 392,840.87 × 135,593.73
  4. Step 4: Simplify right side
    262,080.81x = 53,266,758,181.78
  5. Step 5: Solve for x
    x = 53,266,758,181.78/262,080.81
  6. Step 6: Final answer
    x = 203,245.55

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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.