Home / 211,519.77-317,121.85-127,260.19

Finding the Fourth Proportional to 211,519.77, 317,121.85 and 127,260.19

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Solution

The fourth proportional to 211,519.77, 317,121.85 and 127,260.19 is: 190,795.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,519.77 : 317,121.85 = 127,260.19 : x
  2. Step 2: Convert to fraction form
    211,519.77/317,121.85 = 127,260.19/x
  3. Step 3: Cross multiply
    211,519.77x = 317,121.85 × 127,260.19
  4. Step 4: Simplify right side
    211,519.77x = 40,356,986,247.85
  5. Step 5: Solve for x
    x = 40,356,986,247.85/211,519.77
  6. Step 6: Final answer
    x = 190,795.34

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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.