Home / 258,897.24-388,342.62-141,317.64

Finding the Fourth Proportional to 258,897.24, 388,342.62 and 141,317.64

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Solution

The fourth proportional to 258,897.24, 388,342.62 and 141,317.64 is: 211,974.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,897.24 : 388,342.62 = 141,317.64 : x
  2. Step 2: Convert to fraction form
    258,897.24/388,342.62 = 141,317.64/x
  3. Step 3: Cross multiply
    258,897.24x = 388,342.62 × 141,317.64
  4. Step 4: Simplify right side
    258,897.24x = 54,879,662,569.82
  5. Step 5: Solve for x
    x = 54,879,662,569.82/258,897.24
  6. Step 6: Final answer
    x = 211,974.69

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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.