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Finding the Fourth Proportional to 154,009.25, 230,878.90 and 74,007.37

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Solution

The fourth proportional to 154,009.25, 230,878.90 and 74,007.37 is: 110,946.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,009.25 : 230,878.90 = 74,007.37 : x
  2. Step 2: Convert to fraction form
    154,009.25/230,878.90 = 74,007.37/x
  3. Step 3: Cross multiply
    154,009.25x = 230,878.90 × 74,007.37
  4. Step 4: Simplify right side
    154,009.25x = 17,086,738,653.06
  5. Step 5: Solve for x
    x = 17,086,738,653.06/154,009.25
  6. Step 6: Final answer
    x = 110,946.19

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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.