Home / 330,336.05-455,936.33-217,169.33

Finding the Fourth Proportional to 330,336.05, 455,936.33 and 217,169.33

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Solution

The fourth proportional to 330,336.05, 455,936.33 and 217,169.33 is: 299,741.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,336.05 : 455,936.33 = 217,169.33 : x
  2. Step 2: Convert to fraction form
    330,336.05/455,936.33 = 217,169.33/x
  3. Step 3: Cross multiply
    330,336.05x = 455,936.33 × 217,169.33
  4. Step 4: Simplify right side
    330,336.05x = 99,015,386,222.91
  5. Step 5: Solve for x
    x = 99,015,386,222.91/330,336.05
  6. Step 6: Final answer
    x = 299,741.39

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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.