Home / 219,268.53-302,558.22-128,590.26

Finding the Fourth Proportional to 219,268.53, 302,558.22 and 128,590.26

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Solution

The fourth proportional to 219,268.53, 302,558.22 and 128,590.26 is: 177,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,268.53 : 302,558.22 = 128,590.26 : x
  2. Step 2: Convert to fraction form
    219,268.53/302,558.22 = 128,590.26/x
  3. Step 3: Cross multiply
    219,268.53x = 302,558.22 × 128,590.26
  4. Step 4: Simplify right side
    219,268.53x = 38,906,040,174.94
  5. Step 5: Solve for x
    x = 38,906,040,174.94/219,268.53
  6. Step 6: Final answer
    x = 177,435.59

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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.