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Finding the Fourth Proportional to 335,662.20, 503,494.56 and 135,986.40

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Solution

The fourth proportional to 335,662.20, 503,494.56 and 135,986.40 is: 203,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,662.20 : 503,494.56 = 135,986.40 : x
  2. Step 2: Convert to fraction form
    335,662.20/503,494.56 = 135,986.40/x
  3. Step 3: Cross multiply
    335,662.20x = 503,494.56 × 135,986.40
  4. Step 4: Simplify right side
    335,662.20x = 68,468,412,633.98
  5. Step 5: Solve for x
    x = 68,468,412,633.98/335,662.20
  6. Step 6: Final answer
    x = 203,980.11

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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.