Home / 285,309.03-393,738.33-157,984.63

Finding the Fourth Proportional to 285,309.03, 393,738.33 and 157,984.63

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Solution

The fourth proportional to 285,309.03, 393,738.33 and 157,984.63 is: 218,025.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,309.03 : 393,738.33 = 157,984.63 : x
  2. Step 2: Convert to fraction form
    285,309.03/393,738.33 = 157,984.63/x
  3. Step 3: Cross multiply
    285,309.03x = 393,738.33 × 157,984.63
  4. Step 4: Simplify right side
    285,309.03x = 62,204,603,989.96
  5. Step 5: Solve for x
    x = 62,204,603,989.96/285,309.03
  6. Step 6: Final answer
    x = 218,025.36

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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.