Home / 262,342.20-393,059.70-121,812.60

Finding the Fourth Proportional to 262,342.20, 393,059.70 and 121,812.60

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Solution

The fourth proportional to 262,342.20, 393,059.70 and 121,812.60 is: 182,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,342.20 : 393,059.70 = 121,812.60 : x
  2. Step 2: Convert to fraction form
    262,342.20/393,059.70 = 121,812.60/x
  3. Step 3: Cross multiply
    262,342.20x = 393,059.70 × 121,812.60
  4. Step 4: Simplify right side
    262,342.20x = 47,879,624,012.22
  5. Step 5: Solve for x
    x = 47,879,624,012.22/262,342.20
  6. Step 6: Final answer
    x = 182,508.28

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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.