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Finding the Fourth Proportional to 329,054.44, 454,253 and 208,254.28

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Solution

The fourth proportional to 329,054.44, 454,253 and 208,254.28 is: 287,490.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,054.44 : 454,253 = 208,254.28 : x
  2. Step 2: Convert to fraction form
    329,054.44/454,253 = 208,254.28/x
  3. Step 3: Cross multiply
    329,054.44x = 454,253 × 208,254.28
  4. Step 4: Simplify right side
    329,054.44x = 94,600,131,452.84
  5. Step 5: Solve for x
    x = 94,600,131,452.84/329,054.44
  6. Step 6: Final answer
    x = 287,490.82

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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.