Home / 278,208.18-383,928.39-150,885.90

Finding the Fourth Proportional to 278,208.18, 383,928.39 and 150,885.90

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Solution

The fourth proportional to 278,208.18, 383,928.39 and 150,885.90 is: 208,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,208.18 : 383,928.39 = 150,885.90 : x
  2. Step 2: Convert to fraction form
    278,208.18/383,928.39 = 150,885.90/x
  3. Step 3: Cross multiply
    278,208.18x = 383,928.39 × 150,885.90
  4. Step 4: Simplify right side
    278,208.18x = 57,929,380,660.70
  5. Step 5: Solve for x
    x = 57,929,380,660.70/278,208.18
  6. Step 6: Final answer
    x = 208,223.14

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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.