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Finding the Fourth Proportional to 278,400.33, 384,193.49 and 151,075.89

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Solution

The fourth proportional to 278,400.33, 384,193.49 and 151,075.89 is: 208,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,400.33 : 384,193.49 = 151,075.89 : x
  2. Step 2: Convert to fraction form
    278,400.33/384,193.49 = 151,075.89/x
  3. Step 3: Cross multiply
    278,400.33x = 384,193.49 × 151,075.89
  4. Step 4: Simplify right side
    278,400.33x = 58,042,372,678.58
  5. Step 5: Solve for x
    x = 58,042,372,678.58/278,400.33
  6. Step 6: Final answer
    x = 208,485.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.