Home / 278,840.24-384,801.88-151,515.85

Finding the Fourth Proportional to 278,840.24, 384,801.88 and 151,515.85

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Solution

The fourth proportional to 278,840.24, 384,801.88 and 151,515.85 is: 209,093.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840.24 : 384,801.88 = 151,515.85 : x
  2. Step 2: Convert to fraction form
    278,840.24/384,801.88 = 151,515.85/x
  3. Step 3: Cross multiply
    278,840.24x = 384,801.88 × 151,515.85
  4. Step 4: Simplify right side
    278,840.24x = 58,303,583,929.80
  5. Step 5: Solve for x
    x = 58,303,583,929.80/278,840.24
  6. Step 6: Final answer
    x = 209,093.15

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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.