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Finding the Fourth Proportional to 235,601.28, 325,005.84 and 140,040

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Solution

The fourth proportional to 235,601.28, 325,005.84 and 140,040 is: 193,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,601.28 : 325,005.84 = 140,040 : x
  2. Step 2: Convert to fraction form
    235,601.28/325,005.84 = 140,040/x
  3. Step 3: Cross multiply
    235,601.28x = 325,005.84 × 140,040
  4. Step 4: Simplify right side
    235,601.28x = 45,513,817,833.60
  5. Step 5: Solve for x
    x = 45,513,817,833.60/235,601.28
  6. Step 6: Final answer
    x = 193,181.54

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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.