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Finding the Fourth Proportional to 446,309.78, 669,470.10 and 130,773.08

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Solution

The fourth proportional to 446,309.78, 669,470.10 and 130,773.08 is: 196,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,309.78 : 669,470.10 = 130,773.08 : x
  2. Step 2: Convert to fraction form
    446,309.78/669,470.10 = 130,773.08/x
  3. Step 3: Cross multiply
    446,309.78x = 669,470.10 × 130,773.08
  4. Step 4: Simplify right side
    446,309.78x = 87,548,666,944.91
  5. Step 5: Solve for x
    x = 87,548,666,944.91/446,309.78
  6. Step 6: Final answer
    x = 196,161.21

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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.