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Finding the Fourth Proportional to 235,370.96, 352,945.52 and 85,505.60

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Solution

The fourth proportional to 235,370.96, 352,945.52 and 85,505.60 is: 128,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,370.96 : 352,945.52 = 85,505.60 : x
  2. Step 2: Convert to fraction form
    235,370.96/352,945.52 = 85,505.60/x
  3. Step 3: Cross multiply
    235,370.96x = 352,945.52 × 85,505.60
  4. Step 4: Simplify right side
    235,370.96x = 30,178,818,454.91
  5. Step 5: Solve for x
    x = 30,178,818,454.91/235,370.96
  6. Step 6: Final answer
    x = 128,218.10

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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.