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Finding the Fourth Proportional to 281,004.40, 421,506.60 and 162,906.40

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Solution

The fourth proportional to 281,004.40, 421,506.60 and 162,906.40 is: 244,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,004.40 : 421,506.60 = 162,906.40 : x
  2. Step 2: Convert to fraction form
    281,004.40/421,506.60 = 162,906.40/x
  3. Step 3: Cross multiply
    281,004.40x = 421,506.60 × 162,906.40
  4. Step 4: Simplify right side
    281,004.40x = 68,666,122,782.24
  5. Step 5: Solve for x
    x = 68,666,122,782.24/281,004.40
  6. Step 6: Final answer
    x = 244,359.60

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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.