Home / 211,080.72-291,288.44-115,587.38

Finding the Fourth Proportional to 211,080.72, 291,288.44 and 115,587.38

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Solution

The fourth proportional to 211,080.72, 291,288.44 and 115,587.38 is: 159,508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,080.72 : 291,288.44 = 115,587.38 : x
  2. Step 2: Convert to fraction form
    211,080.72/291,288.44 = 115,587.38/x
  3. Step 3: Cross multiply
    211,080.72x = 291,288.44 × 115,587.38
  4. Step 4: Simplify right side
    211,080.72x = 33,669,267,603.89
  5. Step 5: Solve for x
    x = 33,669,267,603.89/211,080.72
  6. Step 6: Final answer
    x = 159,508.97

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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.