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Finding the Fourth Proportional to 300,079.56, 450,052.38 and 89,690.16

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Solution

The fourth proportional to 300,079.56, 450,052.38 and 89,690.16 is: 134,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,079.56 : 450,052.38 = 89,690.16 : x
  2. Step 2: Convert to fraction form
    300,079.56/450,052.38 = 89,690.16/x
  3. Step 3: Cross multiply
    300,079.56x = 450,052.38 × 89,690.16
  4. Step 4: Simplify right side
    300,079.56x = 40,365,269,970.58
  5. Step 5: Solve for x
    x = 40,365,269,970.58/300,079.56
  6. Step 6: Final answer
    x = 134,515.23

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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.