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Finding the Fourth Proportional to 304,671.96, 421,249.90 and 266,837.76

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Solution

The fourth proportional to 304,671.96, 421,249.90 and 266,837.76 is: 368,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,671.96 : 421,249.90 = 266,837.76 : x
  2. Step 2: Convert to fraction form
    304,671.96/421,249.90 = 266,837.76/x
  3. Step 3: Cross multiply
    304,671.96x = 421,249.90 × 266,837.76
  4. Step 4: Simplify right side
    304,671.96x = 112,405,379,716.22
  5. Step 5: Solve for x
    x = 112,405,379,716.22/304,671.96
  6. Step 6: Final answer
    x = 368,939.04

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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.