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Finding the Fourth Proportional to 262,121.80, 393,474.30 and 162,394.60

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Solution

The fourth proportional to 262,121.80, 393,474.30 and 162,394.60 is: 243,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,121.80 : 393,474.30 = 162,394.60 : x
  2. Step 2: Convert to fraction form
    262,121.80/393,474.30 = 162,394.60/x
  3. Step 3: Cross multiply
    262,121.80x = 393,474.30 × 162,394.60
  4. Step 4: Simplify right side
    262,121.80x = 63,898,101,558.78
  5. Step 5: Solve for x
    x = 63,898,101,558.78/262,121.80
  6. Step 6: Final answer
    x = 243,772.56

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1.5x scale

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.