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Finding the Fourth Proportional to 235,350.46, 352,914.81 and 85,485.07

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Solution

The fourth proportional to 235,350.46, 352,914.81 and 85,485.07 is: 128,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,350.46 : 352,914.81 = 85,485.07 : x
  2. Step 2: Convert to fraction form
    235,350.46/352,914.81 = 85,485.07/x
  3. Step 3: Cross multiply
    235,350.46x = 352,914.81 × 85,485.07
  4. Step 4: Simplify right side
    235,350.46x = 30,168,947,236.89
  5. Step 5: Solve for x
    x = 30,168,947,236.89/235,350.46
  6. Step 6: Final answer
    x = 128,187.33

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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.