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Finding the Fourth Proportional to 300,124.62, 450,020.75 and 122,756.19

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Solution

The fourth proportional to 300,124.62, 450,020.75 and 122,756.19 is: 184,066.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,124.62 : 450,020.75 = 122,756.19 : x
  2. Step 2: Convert to fraction form
    300,124.62/450,020.75 = 122,756.19/x
  3. Step 3: Cross multiply
    300,124.62x = 450,020.75 × 122,756.19
  4. Step 4: Simplify right side
    300,124.62x = 55,242,832,077.16
  5. Step 5: Solve for x
    x = 55,242,832,077.16/300,124.62
  6. Step 6: Final answer
    x = 184,066.31

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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.