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Finding the Fourth Proportional to 203,537.52, 280,878.36 and 112,893.60

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Solution

The fourth proportional to 203,537.52, 280,878.36 and 112,893.60 is: 155,791.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,537.52 : 280,878.36 = 112,893.60 : x
  2. Step 2: Convert to fraction form
    203,537.52/280,878.36 = 112,893.60/x
  3. Step 3: Cross multiply
    203,537.52x = 280,878.36 × 112,893.60
  4. Step 4: Simplify right side
    203,537.52x = 31,709,369,222.50
  5. Step 5: Solve for x
    x = 31,709,369,222.50/203,537.52
  6. Step 6: Final answer
    x = 155,791.27

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1.5x scale

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.