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Finding the Fourth Proportional to 330,287.38, 455,798.91 and 179,384.38

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Solution

The fourth proportional to 330,287.38, 455,798.91 and 179,384.38 is: 247,551.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,287.38 : 455,798.91 = 179,384.38 : x
  2. Step 2: Convert to fraction form
    330,287.38/455,798.91 = 179,384.38/x
  3. Step 3: Cross multiply
    330,287.38x = 455,798.91 × 179,384.38
  4. Step 4: Simplify right side
    330,287.38x = 81,763,204,408.22
  5. Step 5: Solve for x
    x = 81,763,204,408.22/330,287.38
  6. Step 6: Final answer
    x = 247,551.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.