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Finding the Fourth Proportional to 304,930.63, 457,174 and 127,487.98

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Solution

The fourth proportional to 304,930.63, 457,174 and 127,487.98 is: 191,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,930.63 : 457,174 = 127,487.98 : x
  2. Step 2: Convert to fraction form
    304,930.63/457,174 = 127,487.98/x
  3. Step 3: Cross multiply
    304,930.63x = 457,174 × 127,487.98
  4. Step 4: Simplify right side
    304,930.63x = 58,284,189,768.52
  5. Step 5: Solve for x
    x = 58,284,189,768.52/304,930.63
  6. Step 6: Final answer
    x = 191,139.18

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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.