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Finding the Fourth Proportional to 300,866.10, 451,080.45 and 123,281.70

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Solution

The fourth proportional to 300,866.10, 451,080.45 and 123,281.70 is: 184,832.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,866.10 : 451,080.45 = 123,281.70 : x
  2. Step 2: Convert to fraction form
    300,866.10/451,080.45 = 123,281.70/x
  3. Step 3: Cross multiply
    300,866.10x = 451,080.45 × 123,281.70
  4. Step 4: Simplify right side
    300,866.10x = 55,609,964,712.77
  5. Step 5: Solve for x
    x = 55,609,964,712.77/300,866.10
  6. Step 6: Final answer
    x = 184,832.94

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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.