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Finding the Fourth Proportional to 335,636.56, 503,630.36 and 135,978.16

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Solution

The fourth proportional to 335,636.56, 503,630.36 and 135,978.16 is: 204,038.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,636.56 : 503,630.36 = 135,978.16 : x
  2. Step 2: Convert to fraction form
    335,636.56/503,630.36 = 135,978.16/x
  3. Step 3: Cross multiply
    335,636.56x = 503,630.36 × 135,978.16
  4. Step 4: Simplify right side
    335,636.56x = 68,482,729,672.94
  5. Step 5: Solve for x
    x = 68,482,729,672.94/335,636.56
  6. Step 6: Final answer
    x = 204,038.35

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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.