Home / 330,331.05-455,929.43-217,164.33

Finding the Fourth Proportional to 330,331.05, 455,929.43 and 217,164.33

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Solution

The fourth proportional to 330,331.05, 455,929.43 and 217,164.33 is: 299,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,331.05 : 455,929.43 = 217,164.33 : x
  2. Step 2: Convert to fraction form
    330,331.05/455,929.43 = 217,164.33/x
  3. Step 3: Cross multiply
    330,331.05x = 455,929.43 × 217,164.33
  4. Step 4: Simplify right side
    330,331.05x = 99,011,608,107.41
  5. Step 5: Solve for x
    x = 99,011,608,107.41/330,331.05
  6. Step 6: Final answer
    x = 299,734.49

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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.