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Finding the Fourth Proportional to 300,054.36, 450,154.84 and 211,480.86

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Solution

The fourth proportional to 300,054.36, 450,154.84 and 211,480.86 is: 317,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,054.36 : 450,154.84 = 211,480.86 : x
  2. Step 2: Convert to fraction form
    300,054.36/450,154.84 = 211,480.86/x
  3. Step 3: Cross multiply
    300,054.36x = 450,154.84 × 211,480.86
  4. Step 4: Simplify right side
    300,054.36x = 95,199,132,696.36
  5. Step 5: Solve for x
    x = 95,199,132,696.36/300,054.36
  6. Step 6: Final answer
    x = 317,272.95

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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.