Home / 280,919.63-421,379.45-83,927.63

Finding the Fourth Proportional to 280,919.63, 421,379.45 and 83,927.63

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Solution

The fourth proportional to 280,919.63, 421,379.45 and 83,927.63 is: 125,891.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,919.63 : 421,379.45 = 83,927.63 : x
  2. Step 2: Convert to fraction form
    280,919.63/421,379.45 = 83,927.63/x
  3. Step 3: Cross multiply
    280,919.63x = 421,379.45 × 83,927.63
  4. Step 4: Simplify right side
    280,919.63x = 35,365,376,042.67
  5. Step 5: Solve for x
    x = 35,365,376,042.67/280,919.63
  6. Step 6: Final answer
    x = 125,891.44

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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.