Home / 291,228.50-401,816.76-170,399.45

Finding the Fourth Proportional to 291,228.50, 401,816.76 and 170,399.45

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Solution

The fourth proportional to 291,228.50, 401,816.76 and 170,399.45 is: 235,105.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,228.50 : 401,816.76 = 170,399.45 : x
  2. Step 2: Convert to fraction form
    291,228.50/401,816.76 = 170,399.45/x
  3. Step 3: Cross multiply
    291,228.50x = 401,816.76 × 170,399.45
  4. Step 4: Simplify right side
    291,228.50x = 68,469,354,904.78
  5. Step 5: Solve for x
    x = 68,469,354,904.78/291,228.50
  6. Step 6: Final answer
    x = 235,105.27

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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.