Home / 280,774.20-421,183.38-93,786.36

Finding the Fourth Proportional to 280,774.20, 421,183.38 and 93,786.36

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Solution

The fourth proportional to 280,774.20, 421,183.38 and 93,786.36 is: 140,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,774.20 : 421,183.38 = 93,786.36 : x
  2. Step 2: Convert to fraction form
    280,774.20/421,183.38 = 93,786.36/x
  3. Step 3: Cross multiply
    280,774.20x = 421,183.38 × 93,786.36
  4. Step 4: Simplify right side
    280,774.20x = 39,501,256,102.70
  5. Step 5: Solve for x
    x = 39,501,256,102.70/280,774.20
  6. Step 6: Final answer
    x = 140,686.92

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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.