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Finding the Fourth Proportional to 304,687.68, 457,105.30 and 91,455.18

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Solution

The fourth proportional to 304,687.68, 457,105.30 and 91,455.18 is: 137,204.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,687.68 : 457,105.30 = 91,455.18 : x
  2. Step 2: Convert to fraction form
    304,687.68/457,105.30 = 91,455.18/x
  3. Step 3: Cross multiply
    304,687.68x = 457,105.30 × 91,455.18
  4. Step 4: Simplify right side
    304,687.68x = 41,804,647,490.45
  5. Step 5: Solve for x
    x = 41,804,647,490.45/304,687.68
  6. Step 6: Final answer
    x = 137,204.92

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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.