Home / 278,967.57-384,974.96-151,644.08

Finding the Fourth Proportional to 278,967.57, 384,974.96 and 151,644.08

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Solution

The fourth proportional to 278,967.57, 384,974.96 and 151,644.08 is: 209,268.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,967.57 : 384,974.96 = 151,644.08 : x
  2. Step 2: Convert to fraction form
    278,967.57/384,974.96 = 151,644.08/x
  3. Step 3: Cross multiply
    278,967.57x = 384,974.96 × 151,644.08
  4. Step 4: Simplify right side
    278,967.57x = 58,379,170,949.14
  5. Step 5: Solve for x
    x = 58,379,170,949.14/278,967.57
  6. Step 6: Final answer
    x = 209,268.66

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Why These Related Problems?

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