Home / 313,986.20-433,148.61-186,571.58

Finding the Fourth Proportional to 313,986.20, 433,148.61 and 186,571.58

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Solution

The fourth proportional to 313,986.20, 433,148.61 and 186,571.58 is: 257,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,986.20 : 433,148.61 = 186,571.58 : x
  2. Step 2: Convert to fraction form
    313,986.20/433,148.61 = 186,571.58/x
  3. Step 3: Cross multiply
    313,986.20x = 433,148.61 × 186,571.58
  4. Step 4: Simplify right side
    313,986.20x = 80,813,220,542.50
  5. Step 5: Solve for x
    x = 80,813,220,542.50/313,986.20
  6. Step 6: Final answer
    x = 257,378.26

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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.