Home / 330,334.05-455,933.57-217,167.33

Finding the Fourth Proportional to 330,334.05, 455,933.57 and 217,167.33

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Solution

The fourth proportional to 330,334.05, 455,933.57 and 217,167.33 is: 299,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,334.05 : 455,933.57 = 217,167.33 : x
  2. Step 2: Convert to fraction form
    330,334.05/455,933.57 = 217,167.33/x
  3. Step 3: Cross multiply
    330,334.05x = 455,933.57 × 217,167.33
  4. Step 4: Simplify right side
    330,334.05x = 99,013,874,968.43
  5. Step 5: Solve for x
    x = 99,013,874,968.43/330,334.05
  6. Step 6: Final answer
    x = 299,738.63

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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.