Home / 300,790.24-451,242.36-120,889.66

Finding the Fourth Proportional to 300,790.24, 451,242.36 and 120,889.66

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Solution

The fourth proportional to 300,790.24, 451,242.36 and 120,889.66 is: 181,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,790.24 : 451,242.36 = 120,889.66 : x
  2. Step 2: Convert to fraction form
    300,790.24/451,242.36 = 120,889.66/x
  3. Step 3: Cross multiply
    300,790.24x = 451,242.36 × 120,889.66
  4. Step 4: Simplify right side
    300,790.24x = 54,550,535,478.00
  5. Step 5: Solve for x
    x = 54,550,535,478.00/300,790.24
  6. Step 6: Final answer
    x = 181,357.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.