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Finding the Fourth Proportional to 329,919.66, 455,008.32 and 222,348.42

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Solution

The fourth proportional to 329,919.66, 455,008.32 and 222,348.42 is: 306,651.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,919.66 : 455,008.32 = 222,348.42 : x
  2. Step 2: Convert to fraction form
    329,919.66/455,008.32 = 222,348.42/x
  3. Step 3: Cross multiply
    329,919.66x = 455,008.32 × 222,348.42
  4. Step 4: Simplify right side
    329,919.66x = 101,170,381,038.85
  5. Step 5: Solve for x
    x = 101,170,381,038.85/329,919.66
  6. Step 6: Final answer
    x = 306,651.57

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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.