Home / 281,023.08-421,507.26-154,621.77

Finding the Fourth Proportional to 281,023.08, 421,507.26 and 154,621.77

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Solution

The fourth proportional to 281,023.08, 421,507.26 and 154,621.77 is: 231,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,023.08 : 421,507.26 = 154,621.77 : x
  2. Step 2: Convert to fraction form
    281,023.08/421,507.26 = 154,621.77/x
  3. Step 3: Cross multiply
    281,023.08x = 421,507.26 × 154,621.77
  4. Step 4: Simplify right side
    281,023.08x = 65,174,198,609.05
  5. Step 5: Solve for x
    x = 65,174,198,609.05/281,023.08
  6. Step 6: Final answer
    x = 231,917.60

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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.