Home / 281,786.50-388,905.15-174,391.12

Finding the Fourth Proportional to 281,786.50, 388,905.15 and 174,391.12

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Solution

The fourth proportional to 281,786.50, 388,905.15 and 174,391.12 is: 240,684.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,786.50 : 388,905.15 = 174,391.12 : x
  2. Step 2: Convert to fraction form
    281,786.50/388,905.15 = 174,391.12/x
  3. Step 3: Cross multiply
    281,786.50x = 388,905.15 × 174,391.12
  4. Step 4: Simplify right side
    281,786.50x = 67,821,604,682.27
  5. Step 5: Solve for x
    x = 67,821,604,682.27/281,786.50
  6. Step 6: Final answer
    x = 240,684.36

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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.