Home / 211,006.39-291,188.33-115,512.25

Finding the Fourth Proportional to 211,006.39, 291,188.33 and 115,512.25

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Solution

The fourth proportional to 211,006.39, 291,188.33 and 115,512.25 is: 159,406.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,006.39 : 291,188.33 = 115,512.25 : x
  2. Step 2: Convert to fraction form
    211,006.39/291,188.33 = 115,512.25/x
  3. Step 3: Cross multiply
    211,006.39x = 291,188.33 × 115,512.25
  4. Step 4: Simplify right side
    211,006.39x = 33,635,818,299.68
  5. Step 5: Solve for x
    x = 33,635,818,299.68/211,006.39
  6. Step 6: Final answer
    x = 159,406.64

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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.