Home / 285,736.85-394,301.70-163,205.16

Finding the Fourth Proportional to 285,736.85, 394,301.70 and 163,205.16

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Solution

The fourth proportional to 285,736.85, 394,301.70 and 163,205.16 is: 225,214.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,736.85 : 394,301.70 = 163,205.16 : x
  2. Step 2: Convert to fraction form
    285,736.85/394,301.70 = 163,205.16/x
  3. Step 3: Cross multiply
    285,736.85x = 394,301.70 × 163,205.16
  4. Step 4: Simplify right side
    285,736.85x = 64,352,072,036.77
  5. Step 5: Solve for x
    x = 64,352,072,036.77/285,736.85
  6. Step 6: Final answer
    x = 225,214.47

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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.