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Finding the Fourth Proportional to 333,340, 500,010 and 99,868

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Solution

The fourth proportional to 333,340, 500,010 and 99,868 is: 149,802

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,340 : 500,010 = 99,868 : x
  2. Step 2: Convert to fraction form
    333,340/500,010 = 99,868/x
  3. Step 3: Cross multiply
    333,340x = 500,010 × 99,868
  4. Step 4: Simplify right side
    333,340x = 49,934,998,680
  5. Step 5: Solve for x
    x = 49,934,998,680/333,340
  6. Step 6: Final answer
    x = 149,802

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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.