Home / 280,196.60-420,321.02-111,676.10

Finding the Fourth Proportional to 280,196.60, 420,321.02 and 111,676.10

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Solution

The fourth proportional to 280,196.60, 420,321.02 and 111,676.10 is: 167,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,196.60 : 420,321.02 = 111,676.10 : x
  2. Step 2: Convert to fraction form
    280,196.60/420,321.02 = 111,676.10/x
  3. Step 3: Cross multiply
    280,196.60x = 420,321.02 × 111,676.10
  4. Step 4: Simplify right side
    280,196.60x = 46,939,809,601.64
  5. Step 5: Solve for x
    x = 46,939,809,601.64/280,196.60
  6. Step 6: Final answer
    x = 167,524.55

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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.