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Finding the Fourth Proportional to 304,704.27, 420,439.68 and 190,018.89

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Solution

The fourth proportional to 304,704.27, 420,439.68 and 190,018.89 is: 262,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,704.27 : 420,439.68 = 190,018.89 : x
  2. Step 2: Convert to fraction form
    304,704.27/420,439.68 = 190,018.89/x
  3. Step 3: Cross multiply
    304,704.27x = 420,439.68 × 190,018.89
  4. Step 4: Simplify right side
    304,704.27x = 79,891,481,305.56
  5. Step 5: Solve for x
    x = 79,891,481,305.56/304,704.27
  6. Step 6: Final answer
    x = 262,193.51

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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.