Home / 278,941.33-384,939.57-151,616.62

Finding the Fourth Proportional to 278,941.33, 384,939.57 and 151,616.62

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Solution

The fourth proportional to 278,941.33, 384,939.57 and 151,616.62 is: 209,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,941.33 : 384,939.57 = 151,616.62 : x
  2. Step 2: Convert to fraction form
    278,941.33/384,939.57 = 151,616.62/x
  3. Step 3: Cross multiply
    278,941.33x = 384,939.57 × 151,616.62
  4. Step 4: Simplify right side
    278,941.33x = 58,363,236,507.65
  5. Step 5: Solve for x
    x = 58,363,236,507.65/278,941.33
  6. Step 6: Final answer
    x = 209,231.23

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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.