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Finding the Fourth Proportional to 250,021.08, 375,025.14 and 81,554.04

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Solution

The fourth proportional to 250,021.08, 375,025.14 and 81,554.04 is: 122,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,021.08 : 375,025.14 = 81,554.04 : x
  2. Step 2: Convert to fraction form
    250,021.08/375,025.14 = 81,554.04/x
  3. Step 3: Cross multiply
    250,021.08x = 375,025.14 × 81,554.04
  4. Step 4: Simplify right side
    250,021.08x = 30,584,815,268.57
  5. Step 5: Solve for x
    x = 30,584,815,268.57/250,021.08
  6. Step 6: Final answer
    x = 122,328.95

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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.