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Finding the Fourth Proportional to 201,929.40, 302,930.13 and 67,001.57

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Solution

The fourth proportional to 201,929.40, 302,930.13 and 67,001.57 is: 100,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,929.40 : 302,930.13 = 67,001.57 : x
  2. Step 2: Convert to fraction form
    201,929.40/302,930.13 = 67,001.57/x
  3. Step 3: Cross multiply
    201,929.40x = 302,930.13 × 67,001.57
  4. Step 4: Simplify right side
    201,929.40x = 20,296,792,795.65
  5. Step 5: Solve for x
    x = 20,296,792,795.65/201,929.40
  6. Step 6: Final answer
    x = 100,514.30

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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.