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Finding the Fourth Proportional to 300,848.68, 451,269.78 and 123,316.12

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Solution

The fourth proportional to 300,848.68, 451,269.78 and 123,316.12 is: 184,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,848.68 : 451,269.78 = 123,316.12 : x
  2. Step 2: Convert to fraction form
    300,848.68/451,269.78 = 123,316.12/x
  3. Step 3: Cross multiply
    300,848.68x = 451,269.78 × 123,316.12
  4. Step 4: Simplify right side
    300,848.68x = 55,648,838,342.85
  5. Step 5: Solve for x
    x = 55,648,838,342.85/300,848.68
  6. Step 6: Final answer
    x = 184,972.85

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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.