Home / 393,923.20-591,030.60-157,435.60

Finding the Fourth Proportional to 393,923.20, 591,030.60 and 157,435.60

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Solution

The fourth proportional to 393,923.20, 591,030.60 and 157,435.60 is: 236,211.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,923.20 : 591,030.60 = 157,435.60 : x
  2. Step 2: Convert to fraction form
    393,923.20/591,030.60 = 157,435.60/x
  3. Step 3: Cross multiply
    393,923.20x = 591,030.60 × 157,435.60
  4. Step 4: Simplify right side
    393,923.20x = 93,049,257,129.36
  5. Step 5: Solve for x
    x = 93,049,257,129.36/393,923.20
  6. Step 6: Final answer
    x = 236,211.67

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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.