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Finding the Fourth Proportional to 281,168.28, 421,752.96 and 70,804.80

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Solution

The fourth proportional to 281,168.28, 421,752.96 and 70,804.80 is: 106,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,168.28 : 421,752.96 = 70,804.80 : x
  2. Step 2: Convert to fraction form
    281,168.28/421,752.96 = 70,804.80/x
  3. Step 3: Cross multiply
    281,168.28x = 421,752.96 × 70,804.80
  4. Step 4: Simplify right side
    281,168.28x = 29,862,133,982.21
  5. Step 5: Solve for x
    x = 29,862,133,982.21/281,168.28
  6. Step 6: Final answer
    x = 106,207.34

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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.