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Finding the Fourth Proportional to 300,370.05, 450,622.58 and 100,685.34

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Solution

The fourth proportional to 300,370.05, 450,622.58 and 100,685.34 is: 151,050.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,370.05 : 450,622.58 = 100,685.34 : x
  2. Step 2: Convert to fraction form
    300,370.05/450,622.58 = 100,685.34/x
  3. Step 3: Cross multiply
    300,370.05x = 450,622.58 × 100,685.34
  4. Step 4: Simplify right side
    300,370.05x = 45,371,087,678.98
  5. Step 5: Solve for x
    x = 45,371,087,678.98/300,370.05
  6. Step 6: Final answer
    x = 151,050.64

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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.