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Finding the Fourth Proportional to 441,201.45, 660,132.12 and 261,383.42

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Solution

The fourth proportional to 441,201.45, 660,132.12 and 261,383.42 is: 391,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,201.45 : 660,132.12 = 261,383.42 : x
  2. Step 2: Convert to fraction form
    441,201.45/660,132.12 = 261,383.42/x
  3. Step 3: Cross multiply
    441,201.45x = 660,132.12 × 261,383.42
  4. Step 4: Simplify right side
    441,201.45x = 172,547,587,876.79
  5. Step 5: Solve for x
    x = 172,547,587,876.79/441,201.45
  6. Step 6: Final answer
    x = 391,085.72

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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.