Home / 285,480.72-393,935.22-162,974.64

Finding the Fourth Proportional to 285,480.72, 393,935.22 and 162,974.64

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Solution

The fourth proportional to 285,480.72, 393,935.22 and 162,974.64 is: 224,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,480.72 : 393,935.22 = 162,974.64 : x
  2. Step 2: Convert to fraction form
    285,480.72/393,935.22 = 162,974.64/x
  3. Step 3: Cross multiply
    285,480.72x = 393,935.22 × 162,974.64
  4. Step 4: Simplify right side
    285,480.72x = 64,201,450,662.82
  5. Step 5: Solve for x
    x = 64,201,450,662.82/285,480.72
  6. Step 6: Final answer
    x = 224,888.92

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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.