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Finding the Fourth Proportional to 358,771.88, 495,126.48 and 205,808.96

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Solution

The fourth proportional to 358,771.88, 495,126.48 and 205,808.96 is: 284,028.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,771.88 : 495,126.48 = 205,808.96 : x
  2. Step 2: Convert to fraction form
    358,771.88/495,126.48 = 205,808.96/x
  3. Step 3: Cross multiply
    358,771.88x = 495,126.48 × 205,808.96
  4. Step 4: Simplify right side
    358,771.88x = 101,901,465,917.26
  5. Step 5: Solve for x
    x = 101,901,465,917.26/358,771.88
  6. Step 6: Final answer
    x = 284,028.58

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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.