Home / 285,187.85-393,559.23-157,863.44

Finding the Fourth Proportional to 285,187.85, 393,559.23 and 157,863.44

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Solution

The fourth proportional to 285,187.85, 393,559.23 and 157,863.44 is: 217,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,187.85 : 393,559.23 = 157,863.44 : x
  2. Step 2: Convert to fraction form
    285,187.85/393,559.23 = 157,863.44/x
  3. Step 3: Cross multiply
    285,187.85x = 393,559.23 × 157,863.44
  4. Step 4: Simplify right side
    285,187.85x = 62,128,615,467.44
  5. Step 5: Solve for x
    x = 62,128,615,467.44/285,187.85
  6. Step 6: Final answer
    x = 217,851.55

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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.