Home / 308,314.06-425,542.04-187,429.75

Finding the Fourth Proportional to 308,314.06, 425,542.04 and 187,429.75

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Solution

The fourth proportional to 308,314.06, 425,542.04 and 187,429.75 is: 258,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,314.06 : 425,542.04 = 187,429.75 : x
  2. Step 2: Convert to fraction form
    308,314.06/425,542.04 = 187,429.75/x
  3. Step 3: Cross multiply
    308,314.06x = 425,542.04 × 187,429.75
  4. Step 4: Simplify right side
    308,314.06x = 79,759,238,171.69
  5. Step 5: Solve for x
    x = 79,759,238,171.69/308,314.06
  6. Step 6: Final answer
    x = 258,694.78

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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.