Home / 211,188.45-291,440.04-126,305.50

Finding the Fourth Proportional to 211,188.45, 291,440.04 and 126,305.50

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Solution

The fourth proportional to 211,188.45, 291,440.04 and 126,305.50 is: 174,301.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,188.45 : 291,440.04 = 126,305.50 : x
  2. Step 2: Convert to fraction form
    211,188.45/291,440.04 = 126,305.50/x
  3. Step 3: Cross multiply
    211,188.45x = 291,440.04 × 126,305.50
  4. Step 4: Simplify right side
    211,188.45x = 36,810,479,972.22
  5. Step 5: Solve for x
    x = 36,810,479,972.22/211,188.45
  6. Step 6: Final answer
    x = 174,301.58

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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.