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Finding the Fourth Proportional to 304,483.05, 456,691.77 and 79,866

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Solution

The fourth proportional to 304,483.05, 456,691.77 and 79,866 is: 119,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,483.05 : 456,691.77 = 79,866 : x
  2. Step 2: Convert to fraction form
    304,483.05/456,691.77 = 79,866/x
  3. Step 3: Cross multiply
    304,483.05x = 456,691.77 × 79,866
  4. Step 4: Simplify right side
    304,483.05x = 36,474,144,902.82
  5. Step 5: Solve for x
    x = 36,474,144,902.82/304,483.05
  6. Step 6: Final answer
    x = 119,790.40

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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.