Home / 393,921.20-591,027.60-157,433.60

Finding the Fourth Proportional to 393,921.20, 591,027.60 and 157,433.60

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Solution

The fourth proportional to 393,921.20, 591,027.60 and 157,433.60 is: 236,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,921.20 : 591,027.60 = 157,433.60 : x
  2. Step 2: Convert to fraction form
    393,921.20/591,027.60 = 157,433.60/x
  3. Step 3: Cross multiply
    393,921.20x = 591,027.60 × 157,433.60
  4. Step 4: Simplify right side
    393,921.20x = 93,047,602,767.36
  5. Step 5: Solve for x
    x = 93,047,602,767.36/393,921.20
  6. Step 6: Final answer
    x = 236,208.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.