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Finding the Fourth Proportional to 440,204.78, 660,401.82 and 136,592.62

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Solution

The fourth proportional to 440,204.78, 660,401.82 and 136,592.62 is: 204,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,204.78 : 660,401.82 = 136,592.62 : x
  2. Step 2: Convert to fraction form
    440,204.78/660,401.82 = 136,592.62/x
  3. Step 3: Cross multiply
    440,204.78x = 660,401.82 × 136,592.62
  4. Step 4: Simplify right side
    440,204.78x = 90,206,014,846.57
  5. Step 5: Solve for x
    x = 90,206,014,846.57/440,204.78
  6. Step 6: Final answer
    x = 204,918.30

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1.5x scale

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.