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Finding the Fourth Proportional to 203,503.50, 280,834.83 and 112,873.35

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Solution

The fourth proportional to 203,503.50, 280,834.83 and 112,873.35 is: 155,765.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,503.50 : 280,834.83 = 112,873.35 : x
  2. Step 2: Convert to fraction form
    203,503.50/280,834.83 = 112,873.35/x
  3. Step 3: Cross multiply
    203,503.50x = 280,834.83 × 112,873.35
  4. Step 4: Simplify right side
    203,503.50x = 31,698,768,058.78
  5. Step 5: Solve for x
    x = 31,698,768,058.78/203,503.50
  6. Step 6: Final answer
    x = 155,765.22

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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.