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Finding the Fourth Proportional to 286,040.35, 428,894.38 and 108,450.48

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Solution

The fourth proportional to 286,040.35, 428,894.38 and 108,450.48 is: 162,612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,040.35 : 428,894.38 = 108,450.48 : x
  2. Step 2: Convert to fraction form
    286,040.35/428,894.38 = 108,450.48/x
  3. Step 3: Cross multiply
    286,040.35x = 428,894.38 × 108,450.48
  4. Step 4: Simplify right side
    286,040.35x = 46,513,801,109.18
  5. Step 5: Solve for x
    x = 46,513,801,109.18/286,040.35
  6. Step 6: Final answer
    x = 162,612.73

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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.