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Finding the Fourth Proportional to 330,775.26, 455,537.43 and 329,738.46

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Solution

The fourth proportional to 330,775.26, 455,537.43 and 329,738.46 is: 454,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,775.26 : 455,537.43 = 329,738.46 : x
  2. Step 2: Convert to fraction form
    330,775.26/455,537.43 = 329,738.46/x
  3. Step 3: Cross multiply
    330,775.26x = 455,537.43 × 329,738.46
  4. Step 4: Simplify right side
    330,775.26x = 150,208,210,640.56
  5. Step 5: Solve for x
    x = 150,208,210,640.56/330,775.26
  6. Step 6: Final answer
    x = 454,109.57

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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.