Home / 255,810.72-383,544.89-122,618.33

Finding the Fourth Proportional to 255,810.72, 383,544.89 and 122,618.33

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Solution

The fourth proportional to 255,810.72, 383,544.89 and 122,618.33 is: 183,845.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,810.72 : 383,544.89 = 122,618.33 : x
  2. Step 2: Convert to fraction form
    255,810.72/383,544.89 = 122,618.33/x
  3. Step 3: Cross multiply
    255,810.72x = 383,544.89 × 122,618.33
  4. Step 4: Simplify right side
    255,810.72x = 47,029,631,361.02
  5. Step 5: Solve for x
    x = 47,029,631,361.02/255,810.72
  6. Step 6: Final answer
    x = 183,845.43

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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.