Home / 278,144.28-383,838.75-150,819.57

Finding the Fourth Proportional to 278,144.28, 383,838.75 and 150,819.57

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Solution

The fourth proportional to 278,144.28, 383,838.75 and 150,819.57 is: 208,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,144.28 : 383,838.75 = 150,819.57 : x
  2. Step 2: Convert to fraction form
    278,144.28/383,838.75 = 150,819.57/x
  3. Step 3: Cross multiply
    278,144.28x = 383,838.75 × 150,819.57
  4. Step 4: Simplify right side
    278,144.28x = 57,890,395,224.34
  5. Step 5: Solve for x
    x = 57,890,395,224.34/278,144.28
  6. Step 6: Final answer
    x = 208,130.81

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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.