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Finding the Fourth Proportional to 273,930.51, 378,016.84 and 153,072.80

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Solution

The fourth proportional to 273,930.51, 378,016.84 and 153,072.80 is: 211,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,930.51 : 378,016.84 = 153,072.80 : x
  2. Step 2: Convert to fraction form
    273,930.51/378,016.84 = 153,072.80/x
  3. Step 3: Cross multiply
    273,930.51x = 378,016.84 × 153,072.80
  4. Step 4: Simplify right side
    273,930.51x = 57,864,093,490.50
  5. Step 5: Solve for x
    x = 57,864,093,490.50/273,930.51
  6. Step 6: Final answer
    x = 211,236.40

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1.5x scale

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.