Home / 211,408.03-291,740.97-115,914.50

Finding the Fourth Proportional to 211,408.03, 291,740.97 and 115,914.50

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Solution

The fourth proportional to 211,408.03, 291,740.97 and 115,914.50 is: 159,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,408.03 : 291,740.97 = 115,914.50 : x
  2. Step 2: Convert to fraction form
    211,408.03/291,740.97 = 115,914.50/x
  3. Step 3: Cross multiply
    211,408.03x = 291,740.97 × 115,914.50
  4. Step 4: Simplify right side
    211,408.03x = 33,817,008,667.07
  5. Step 5: Solve for x
    x = 33,817,008,667.07/211,408.03
  6. Step 6: Final answer
    x = 159,960.85

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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.