Home / 263,391.92-363,478.08-142,530.56

Finding the Fourth Proportional to 263,391.92, 363,478.08 and 142,530.56

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Solution

The fourth proportional to 263,391.92, 363,478.08 and 142,530.56 is: 196,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,391.92 : 363,478.08 = 142,530.56 : x
  2. Step 2: Convert to fraction form
    263,391.92/363,478.08 = 142,530.56/x
  3. Step 3: Cross multiply
    263,391.92x = 363,478.08 × 142,530.56
  4. Step 4: Simplify right side
    263,391.92x = 51,806,734,290.12
  5. Step 5: Solve for x
    x = 51,806,734,290.12/263,391.92
  6. Step 6: Final answer
    x = 196,690.67

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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.