Home / 330,021.75-455,431.23-179,118.75

Finding the Fourth Proportional to 330,021.75, 455,431.23 and 179,118.75

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Solution

The fourth proportional to 330,021.75, 455,431.23 and 179,118.75 is: 247,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,021.75 : 455,431.23 = 179,118.75 : x
  2. Step 2: Convert to fraction form
    330,021.75/455,431.23 = 179,118.75/x
  3. Step 3: Cross multiply
    330,021.75x = 455,431.23 × 179,118.75
  4. Step 4: Simplify right side
    330,021.75x = 81,576,272,628.56
  5. Step 5: Solve for x
    x = 81,576,272,628.56/330,021.75
  6. Step 6: Final answer
    x = 247,184.53

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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.