Home / 285,344.22-393,759.32-156,257.63

Finding the Fourth Proportional to 285,344.22, 393,759.32 and 156,257.63

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Solution

The fourth proportional to 285,344.22, 393,759.32 and 156,257.63 is: 215,626.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,344.22 : 393,759.32 = 156,257.63 : x
  2. Step 2: Convert to fraction form
    285,344.22/393,759.32 = 156,257.63/x
  3. Step 3: Cross multiply
    285,344.22x = 393,759.32 × 156,257.63
  4. Step 4: Simplify right side
    285,344.22x = 61,527,899,508.65
  5. Step 5: Solve for x
    x = 61,527,899,508.65/285,344.22
  6. Step 6: Final answer
    x = 215,626.93

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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.