Home / 227,135.40-311,176.61-218,622.43

Finding the Fourth Proportional to 227,135.40, 311,176.61 and 218,622.43

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Solution

The fourth proportional to 227,135.40, 311,176.61 and 218,622.43 is: 299,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,135.40 : 311,176.61 = 218,622.43 : x
  2. Step 2: Convert to fraction form
    227,135.40/311,176.61 = 218,622.43/x
  3. Step 3: Cross multiply
    227,135.40x = 311,176.61 × 218,622.43
  4. Step 4: Simplify right side
    227,135.40x = 68,030,186,637.36
  5. Step 5: Solve for x
    x = 68,030,186,637.36/227,135.40
  6. Step 6: Final answer
    x = 299,513.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.