Home / 420,091.70-630,176.79-167,311.22

Finding the Fourth Proportional to 420,091.70, 630,176.79 and 167,311.22

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Solution

The fourth proportional to 420,091.70, 630,176.79 and 167,311.22 is: 250,982.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,091.70 : 630,176.79 = 167,311.22 : x
  2. Step 2: Convert to fraction form
    420,091.70/630,176.79 = 167,311.22/x
  3. Step 3: Cross multiply
    420,091.70x = 630,176.79 × 167,311.22
  4. Step 4: Simplify right side
    420,091.70x = 105,435,647,550.58
  5. Step 5: Solve for x
    x = 105,435,647,550.58/420,091.70
  6. Step 6: Final answer
    x = 250,982.46

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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.