Home / 207,660.15-311,447.70-57,862.80

Finding the Fourth Proportional to 207,660.15, 311,447.70 and 57,862.80

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Solution

The fourth proportional to 207,660.15, 311,447.70 and 57,862.80 is: 86,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,660.15 : 311,447.70 = 57,862.80 : x
  2. Step 2: Convert to fraction form
    207,660.15/311,447.70 = 57,862.80/x
  3. Step 3: Cross multiply
    207,660.15x = 311,447.70 × 57,862.80
  4. Step 4: Simplify right side
    207,660.15x = 18,021,235,975.56
  5. Step 5: Solve for x
    x = 18,021,235,975.56/207,660.15
  6. Step 6: Final answer
    x = 86,782.35

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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.