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Finding the Fourth Proportional to 317,289.48, 437,796.95 and 188,203.64

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Solution

The fourth proportional to 317,289.48, 437,796.95 and 188,203.64 is: 259,683.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,289.48 : 437,796.95 = 188,203.64 : x
  2. Step 2: Convert to fraction form
    317,289.48/437,796.95 = 188,203.64/x
  3. Step 3: Cross multiply
    317,289.48x = 437,796.95 × 188,203.64
  4. Step 4: Simplify right side
    317,289.48x = 82,394,976,440.90
  5. Step 5: Solve for x
    x = 82,394,976,440.90/317,289.48
  6. Step 6: Final answer
    x = 259,683.92

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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.