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Finding the Fourth Proportional to 358,997.12, 495,414.40 and 197,851.82

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Solution

The fourth proportional to 358,997.12, 495,414.40 and 197,851.82 is: 273,034.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,997.12 : 495,414.40 = 197,851.82 : x
  2. Step 2: Convert to fraction form
    358,997.12/495,414.40 = 197,851.82/x
  3. Step 3: Cross multiply
    358,997.12x = 495,414.40 × 197,851.82
  4. Step 4: Simplify right side
    358,997.12x = 98,018,638,961.04
  5. Step 5: Solve for x
    x = 98,018,638,961.04/358,997.12
  6. Step 6: Final answer
    x = 273,034.61

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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.