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Finding the Fourth Proportional to 300,009.60, 450,066.24 and 122,613.12

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Solution

The fourth proportional to 300,009.60, 450,066.24 and 122,613.12 is: 183,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,009.60 : 450,066.24 = 122,613.12 : x
  2. Step 2: Convert to fraction form
    300,009.60/450,066.24 = 122,613.12/x
  3. Step 3: Cross multiply
    300,009.60x = 450,066.24 × 122,613.12
  4. Step 4: Simplify right side
    300,009.60x = 55,184,025,893.07
  5. Step 5: Solve for x
    x = 55,184,025,893.07/300,009.60
  6. Step 6: Final answer
    x = 183,940.87

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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.