Home / 285,493-393,974.58-164,639.56

Finding the Fourth Proportional to 285,493, 393,974.58 and 164,639.56

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Solution

The fourth proportional to 285,493, 393,974.58 and 164,639.56 is: 227,199.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,493 : 393,974.58 = 164,639.56 : x
  2. Step 2: Convert to fraction form
    285,493/393,974.58 = 164,639.56/x
  3. Step 3: Cross multiply
    285,493x = 393,974.58 × 164,639.56
  4. Step 4: Simplify right side
    285,493x = 64,863,801,502.38
  5. Step 5: Solve for x
    x = 64,863,801,502.38/285,493
  6. Step 6: Final answer
    x = 227,199.27

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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.