Home / 286,788.72-430,183.02-136,573.56

Finding the Fourth Proportional to 286,788.72, 430,183.02 and 136,573.56

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Solution

The fourth proportional to 286,788.72, 430,183.02 and 136,573.56 is: 204,860.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,788.72 : 430,183.02 = 136,573.56 : x
  2. Step 2: Convert to fraction form
    286,788.72/430,183.02 = 136,573.56/x
  3. Step 3: Cross multiply
    286,788.72x = 430,183.02 × 136,573.56
  4. Step 4: Simplify right side
    286,788.72x = 58,751,626,492.95
  5. Step 5: Solve for x
    x = 58,751,626,492.95/286,788.72
  6. Step 6: Final answer
    x = 204,860.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.