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Finding the Fourth Proportional to 300,473.55, 450,045.99 and 205,478.64

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Solution

The fourth proportional to 300,473.55, 450,045.99 and 205,478.64 is: 307,763.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,473.55 : 450,045.99 = 205,478.64 : x
  2. Step 2: Convert to fraction form
    300,473.55/450,045.99 = 205,478.64/x
  3. Step 3: Cross multiply
    300,473.55x = 450,045.99 × 205,478.64
  4. Step 4: Simplify right side
    300,473.55x = 92,474,837,962.65
  5. Step 5: Solve for x
    x = 92,474,837,962.65/300,473.55
  6. Step 6: Final answer
    x = 307,763.65

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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.