Home / 280,924.20-421,375.32-154,814.52

Finding the Fourth Proportional to 280,924.20, 421,375.32 and 154,814.52

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Solution

The fourth proportional to 280,924.20, 421,375.32 and 154,814.52 is: 232,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,924.20 : 421,375.32 = 154,814.52 : x
  2. Step 2: Convert to fraction form
    280,924.20/421,375.32 = 154,814.52/x
  3. Step 3: Cross multiply
    280,924.20x = 421,375.32 × 154,814.52
  4. Step 4: Simplify right side
    280,924.20x = 65,235,017,905.65
  5. Step 5: Solve for x
    x = 65,235,017,905.65/280,924.20
  6. Step 6: Final answer
    x = 232,215.73

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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.