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Finding the Fourth Proportional to 300,657.28, 450,950.08 and 79,058.56

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Solution

The fourth proportional to 300,657.28, 450,950.08 and 79,058.56 is: 118,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,657.28 : 450,950.08 = 79,058.56 : x
  2. Step 2: Convert to fraction form
    300,657.28/450,950.08 = 79,058.56/x
  3. Step 3: Cross multiply
    300,657.28x = 450,950.08 × 79,058.56
  4. Step 4: Simplify right side
    300,657.28x = 35,651,463,956.68
  5. Step 5: Solve for x
    x = 35,651,463,956.68/300,657.28
  6. Step 6: Final answer
    x = 118,578.42

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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.