Home / 203,278.41-280,516.65-117,241.02

Finding the Fourth Proportional to 203,278.41, 280,516.65 and 117,241.02

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Solution

The fourth proportional to 203,278.41, 280,516.65 and 117,241.02 is: 161,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,278.41 : 280,516.65 = 117,241.02 : x
  2. Step 2: Convert to fraction form
    203,278.41/280,516.65 = 117,241.02/x
  3. Step 3: Cross multiply
    203,278.41x = 280,516.65 × 117,241.02
  4. Step 4: Simplify right side
    203,278.41x = 32,888,058,172.98
  5. Step 5: Solve for x
    x = 32,888,058,172.98/203,278.41
  6. Step 6: Final answer
    x = 161,788.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.