Home / 211,518.27-317,119.60-127,258.69

Finding the Fourth Proportional to 211,518.27, 317,119.60 and 127,258.69

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Solution

The fourth proportional to 211,518.27, 317,119.60 and 127,258.69 is: 190,793.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,518.27 : 317,119.60 = 127,258.69 : x
  2. Step 2: Convert to fraction form
    211,518.27/317,119.60 = 127,258.69/x
  3. Step 3: Cross multiply
    211,518.27x = 317,119.60 × 127,258.69
  4. Step 4: Simplify right side
    211,518.27x = 40,356,223,758.38
  5. Step 5: Solve for x
    x = 40,356,223,758.38/211,518.27
  6. Step 6: Final answer
    x = 190,793.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.