Home / 278,450.73-416,751.89-253,548.09

Finding the Fourth Proportional to 278,450.73, 416,751.89 and 253,548.09

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Solution

The fourth proportional to 278,450.73, 416,751.89 and 253,548.09 is: 379,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,450.73 : 416,751.89 = 253,548.09 : x
  2. Step 2: Convert to fraction form
    278,450.73/416,751.89 = 253,548.09/x
  3. Step 3: Cross multiply
    278,450.73x = 416,751.89 × 253,548.09
  4. Step 4: Simplify right side
    278,450.73x = 105,666,644,445.65
  5. Step 5: Solve for x
    x = 105,666,644,445.65/278,450.73
  6. Step 6: Final answer
    x = 379,480.58

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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.