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Finding the Fourth Proportional to 455,286.88, 682,865.64 and 250,185.16

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Solution

The fourth proportional to 455,286.88, 682,865.64 and 250,185.16 is: 375,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,286.88 : 682,865.64 = 250,185.16 : x
  2. Step 2: Convert to fraction form
    455,286.88/682,865.64 = 250,185.16/x
  3. Step 3: Cross multiply
    455,286.88x = 682,865.64 × 250,185.16
  4. Step 4: Simplify right side
    455,286.88x = 170,842,849,401.90
  5. Step 5: Solve for x
    x = 170,842,849,401.90/455,286.88
  6. Step 6: Final answer
    x = 375,242.20

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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.