Home / 263,606.40-363,776.20-142,747.72

Finding the Fourth Proportional to 263,606.40, 363,776.20 and 142,747.72

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Solution

The fourth proportional to 263,606.40, 363,776.20 and 142,747.72 is: 196,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,606.40 : 363,776.20 = 142,747.72 : x
  2. Step 2: Convert to fraction form
    263,606.40/363,776.20 = 142,747.72/x
  3. Step 3: Cross multiply
    263,606.40x = 363,776.20 × 142,747.72
  4. Step 4: Simplify right side
    263,606.40x = 51,928,223,140.26
  5. Step 5: Solve for x
    x = 51,928,223,140.26/263,606.40
  6. Step 6: Final answer
    x = 196,991.51

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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.