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Finding the Fourth Proportional to 315,183.51, 472,779.39 and 104,821.47

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Solution

The fourth proportional to 315,183.51, 472,779.39 and 104,821.47 is: 157,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,183.51 : 472,779.39 = 104,821.47 : x
  2. Step 2: Convert to fraction form
    315,183.51/472,779.39 = 104,821.47/x
  3. Step 3: Cross multiply
    315,183.51x = 472,779.39 × 104,821.47
  4. Step 4: Simplify right side
    315,183.51x = 49,557,430,645.50
  5. Step 5: Solve for x
    x = 49,557,430,645.50/315,183.51
  6. Step 6: Final answer
    x = 157,233.58

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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.