Home / 278,161.93-383,912.61-163,440.55

Finding the Fourth Proportional to 278,161.93, 383,912.61 and 163,440.55

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Solution

The fourth proportional to 278,161.93, 383,912.61 and 163,440.55 is: 225,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,161.93 : 383,912.61 = 163,440.55 : x
  2. Step 2: Convert to fraction form
    278,161.93/383,912.61 = 163,440.55/x
  3. Step 3: Cross multiply
    278,161.93x = 383,912.61 × 163,440.55
  4. Step 4: Simplify right side
    278,161.93x = 62,746,888,916.68
  5. Step 5: Solve for x
    x = 62,746,888,916.68/278,161.93
  6. Step 6: Final answer
    x = 225,576.84

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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.