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Finding the Fourth Proportional to 329,949.92, 455,303 and 193,988.32

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Solution

The fourth proportional to 329,949.92, 455,303 and 193,988.32 is: 267,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,949.92 : 455,303 = 193,988.32 : x
  2. Step 2: Convert to fraction form
    329,949.92/455,303 = 193,988.32/x
  3. Step 3: Cross multiply
    329,949.92x = 455,303 × 193,988.32
  4. Step 4: Simplify right side
    329,949.92x = 88,323,464,060.96
  5. Step 5: Solve for x
    x = 88,323,464,060.96/329,949.92
  6. Step 6: Final answer
    x = 267,687.48

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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.