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Finding the Fourth Proportional to 446,516.70, 669,848.85 and 206,870.10

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Solution

The fourth proportional to 446,516.70, 669,848.85 and 206,870.10 is: 310,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,516.70 : 669,848.85 = 206,870.10 : x
  2. Step 2: Convert to fraction form
    446,516.70/669,848.85 = 206,870.10/x
  3. Step 3: Cross multiply
    446,516.70x = 669,848.85 × 206,870.10
  4. Step 4: Simplify right side
    446,516.70x = 138,571,698,584.39
  5. Step 5: Solve for x
    x = 138,571,698,584.39/446,516.70
  6. Step 6: Final answer
    x = 310,339.34

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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.