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Finding the Fourth Proportional to 446,311.80, 669,473.12 and 130,775.08

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Solution

The fourth proportional to 446,311.80, 669,473.12 and 130,775.08 is: 196,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,311.80 : 669,473.12 = 130,775.08 : x
  2. Step 2: Convert to fraction form
    446,311.80/669,473.12 = 130,775.08/x
  3. Step 3: Cross multiply
    446,311.80x = 669,473.12 × 130,775.08
  4. Step 4: Simplify right side
    446,311.80x = 87,550,400,825.85
  5. Step 5: Solve for x
    x = 87,550,400,825.85/446,311.80
  6. Step 6: Final answer
    x = 196,164.21

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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.