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Finding the Fourth Proportional to 273,930.39, 378,016.66 and 153,072.66

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Solution

The fourth proportional to 273,930.39, 378,016.66 and 153,072.66 is: 211,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,930.39 : 378,016.66 = 153,072.66 : x
  2. Step 2: Convert to fraction form
    273,930.39/378,016.66 = 153,072.66/x
  3. Step 3: Cross multiply
    273,930.39x = 378,016.66 × 153,072.66
  4. Step 4: Simplify right side
    273,930.39x = 57,864,017,279.42
  5. Step 5: Solve for x
    x = 57,864,017,279.42/273,930.39
  6. Step 6: Final answer
    x = 211,236.21

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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.