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Finding the Fourth Proportional to 300,517.32, 450,060.36 and 173,890.69

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Solution

The fourth proportional to 300,517.32, 450,060.36 and 173,890.69 is: 260,421.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,517.32 : 450,060.36 = 173,890.69 : x
  2. Step 2: Convert to fraction form
    300,517.32/450,060.36 = 173,890.69/x
  3. Step 3: Cross multiply
    300,517.32x = 450,060.36 × 173,890.69
  4. Step 4: Simplify right side
    300,517.32x = 78,261,306,542.05
  5. Step 5: Solve for x
    x = 78,261,306,542.05/300,517.32
  6. Step 6: Final answer
    x = 260,421.95

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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.