Home / 211,528.20-317,190.21-122,804.04

Finding the Fourth Proportional to 211,528.20, 317,190.21 and 122,804.04

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Solution

The fourth proportional to 211,528.20, 317,190.21 and 122,804.04 is: 184,146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,528.20 : 317,190.21 = 122,804.04 : x
  2. Step 2: Convert to fraction form
    211,528.20/317,190.21 = 122,804.04/x
  3. Step 3: Cross multiply
    211,528.20x = 317,190.21 × 122,804.04
  4. Step 4: Simplify right side
    211,528.20x = 38,952,239,236.45
  5. Step 5: Solve for x
    x = 38,952,239,236.45/211,528.20
  6. Step 6: Final answer
    x = 184,146.79

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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.