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Finding the Fourth Proportional to 286,004.70, 428,877.45 and 108,452.70

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Solution

The fourth proportional to 286,004.70, 428,877.45 and 108,452.70 is: 162,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,004.70 : 428,877.45 = 108,452.70 : x
  2. Step 2: Convert to fraction form
    286,004.70/428,877.45 = 108,452.70/x
  3. Step 3: Cross multiply
    286,004.70x = 428,877.45 × 108,452.70
  4. Step 4: Simplify right side
    286,004.70x = 46,512,917,421.62
  5. Step 5: Solve for x
    x = 46,512,917,421.62/286,004.70
  6. Step 6: Final answer
    x = 162,629.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.