Home / 278,020.36-383,669.49-150,694.84

Finding the Fourth Proportional to 278,020.36, 383,669.49 and 150,694.84

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Solution

The fourth proportional to 278,020.36, 383,669.49 and 150,694.84 is: 207,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,020.36 : 383,669.49 = 150,694.84 : x
  2. Step 2: Convert to fraction form
    278,020.36/383,669.49 = 150,694.84/x
  3. Step 3: Cross multiply
    278,020.36x = 383,669.49 × 150,694.84
  4. Step 4: Simplify right side
    278,020.36x = 57,817,012,408.43
  5. Step 5: Solve for x
    x = 57,817,012,408.43/278,020.36
  6. Step 6: Final answer
    x = 207,959.63

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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.