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Finding the Fourth Proportional to 300,663.56, 450,994.92 and 123,170.87

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Solution

The fourth proportional to 300,663.56, 450,994.92 and 123,170.87 is: 184,756.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,663.56 : 450,994.92 = 123,170.87 : x
  2. Step 2: Convert to fraction form
    300,663.56/450,994.92 = 123,170.87/x
  3. Step 3: Cross multiply
    300,663.56x = 450,994.92 × 123,170.87
  4. Step 4: Simplify right side
    300,663.56x = 55,549,434,407.01
  5. Step 5: Solve for x
    x = 55,549,434,407.01/300,663.56
  6. Step 6: Final answer
    x = 184,756.13

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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.