Home / 278,839.10-384,800.39-151,514.69

Finding the Fourth Proportional to 278,839.10, 384,800.39 and 151,514.69

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Solution

The fourth proportional to 278,839.10, 384,800.39 and 151,514.69 is: 209,091.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,839.10 : 384,800.39 = 151,514.69 : x
  2. Step 2: Convert to fraction form
    278,839.10/384,800.39 = 151,514.69/x
  3. Step 3: Cross multiply
    278,839.10x = 384,800.39 × 151,514.69
  4. Step 4: Simplify right side
    278,839.10x = 58,302,909,121.15
  5. Step 5: Solve for x
    x = 58,302,909,121.15/278,839.10
  6. Step 6: Final answer
    x = 209,091.59

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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.