Home / 229,945.05-317,330.33-139,281.75

Finding the Fourth Proportional to 229,945.05, 317,330.33 and 139,281.75

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Solution

The fourth proportional to 229,945.05, 317,330.33 and 139,281.75 is: 192,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,945.05 : 317,330.33 = 139,281.75 : x
  2. Step 2: Convert to fraction form
    229,945.05/317,330.33 = 139,281.75/x
  3. Step 3: Cross multiply
    229,945.05x = 317,330.33 × 139,281.75
  4. Step 4: Simplify right side
    229,945.05x = 44,198,322,994.07
  5. Step 5: Solve for x
    x = 44,198,322,994.07/229,945.05
  6. Step 6: Final answer
    x = 192,212.54

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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.