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Finding the Fourth Proportional to 235,471.25, 324,836.12 and 139,910.29

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Solution

The fourth proportional to 235,471.25, 324,836.12 and 139,910.29 is: 193,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,471.25 : 324,836.12 = 139,910.29 : x
  2. Step 2: Convert to fraction form
    235,471.25/324,836.12 = 139,910.29/x
  3. Step 3: Cross multiply
    235,471.25x = 324,836.12 × 139,910.29
  4. Step 4: Simplify right side
    235,471.25x = 45,447,915,289.36
  5. Step 5: Solve for x
    x = 45,447,915,289.36/235,471.25
  6. Step 6: Final answer
    x = 193,008.34

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1.5x scale

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.