Home / 211,274.31-291,558.55-115,783.21

Finding the Fourth Proportional to 211,274.31, 291,558.55 and 115,783.21

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Solution

The fourth proportional to 211,274.31, 291,558.55 and 115,783.21 is: 159,780.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,274.31 : 291,558.55 = 115,783.21 : x
  2. Step 2: Convert to fraction form
    211,274.31/291,558.55 = 115,783.21/x
  3. Step 3: Cross multiply
    211,274.31x = 291,558.55 × 115,783.21
  4. Step 4: Simplify right side
    211,274.31x = 33,757,584,821.95
  5. Step 5: Solve for x
    x = 33,757,584,821.95/211,274.31
  6. Step 6: Final answer
    x = 159,780.83

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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.