Home / 215,466.28-324,495.91-190,816.36

Finding the Fourth Proportional to 215,466.28, 324,495.91 and 190,816.36

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Solution

The fourth proportional to 215,466.28, 324,495.91 and 190,816.36 is: 287,372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,466.28 : 324,495.91 = 190,816.36 : x
  2. Step 2: Convert to fraction form
    215,466.28/324,495.91 = 190,816.36/x
  3. Step 3: Cross multiply
    215,466.28x = 324,495.91 × 190,816.36
  4. Step 4: Simplify right side
    215,466.28x = 61,919,128,381.09
  5. Step 5: Solve for x
    x = 61,919,128,381.09/215,466.28
  6. Step 6: Final answer
    x = 287,372.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.