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Finding the Fourth Proportional to 201,636.08, 302,640.92 and 101,866.56

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Solution

The fourth proportional to 201,636.08, 302,640.92 and 101,866.56 is: 152,894.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,636.08 : 302,640.92 = 101,866.56 : x
  2. Step 2: Convert to fraction form
    201,636.08/302,640.92 = 101,866.56/x
  3. Step 3: Cross multiply
    201,636.08x = 302,640.92 × 101,866.56
  4. Step 4: Simplify right side
    201,636.08x = 30,828,989,435.64
  5. Step 5: Solve for x
    x = 30,828,989,435.64/201,636.08
  6. Step 6: Final answer
    x = 152,894.21

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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.