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Finding the Fourth Proportional to 235,293.52, 352,784.25 and 85,516.02

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Solution

The fourth proportional to 235,293.52, 352,784.25 and 85,516.02 is: 128,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,293.52 : 352,784.25 = 85,516.02 : x
  2. Step 2: Convert to fraction form
    235,293.52/352,784.25 = 85,516.02/x
  3. Step 3: Cross multiply
    235,293.52x = 352,784.25 × 85,516.02
  4. Step 4: Simplify right side
    235,293.52x = 30,168,704,978.69
  5. Step 5: Solve for x
    x = 30,168,704,978.69/235,293.52
  6. Step 6: Final answer
    x = 128,217.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.