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Finding the Fourth Proportional to 300,166.40, 450,103.80 and 166,905.20

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Solution

The fourth proportional to 300,166.40, 450,103.80 and 166,905.20 is: 250,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,166.40 : 450,103.80 = 166,905.20 : x
  2. Step 2: Convert to fraction form
    300,166.40/450,103.80 = 166,905.20/x
  3. Step 3: Cross multiply
    300,166.40x = 450,103.80 × 166,905.20
  4. Step 4: Simplify right side
    300,166.40x = 75,124,664,759.76
  5. Step 5: Solve for x
    x = 75,124,664,759.76/300,166.40
  6. Step 6: Final answer
    x = 250,276.73

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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.