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Finding the Fourth Proportional to 300,125.74, 450,022.42 and 122,757.32

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Solution

The fourth proportional to 300,125.74, 450,022.42 and 122,757.32 is: 184,068.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,125.74 : 450,022.42 = 122,757.32 : x
  2. Step 2: Convert to fraction form
    300,125.74/450,022.42 = 122,757.32/x
  3. Step 3: Cross multiply
    300,125.74x = 450,022.42 × 122,757.32
  4. Step 4: Simplify right side
    300,125.74x = 55,243,546,219.11
  5. Step 5: Solve for x
    x = 55,243,546,219.11/300,125.74
  6. Step 6: Final answer
    x = 184,068.01

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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.