Home / 211,448.11-291,805.16-115,954.58

Finding the Fourth Proportional to 211,448.11, 291,805.16 and 115,954.58

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Solution

The fourth proportional to 211,448.11, 291,805.16 and 115,954.58 is: 160,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,448.11 : 291,805.16 = 115,954.58 : x
  2. Step 2: Convert to fraction form
    211,448.11/291,805.16 = 115,954.58/x
  3. Step 3: Cross multiply
    211,448.11x = 291,805.16 × 115,954.58
  4. Step 4: Simplify right side
    211,448.11x = 33,836,144,189.86
  5. Step 5: Solve for x
    x = 33,836,144,189.86/211,448.11
  6. Step 6: Final answer
    x = 160,021.03

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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.