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Finding the Fourth Proportional to 300,345.68, 450,533.48 and 89,963.56

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Solution

The fourth proportional to 300,345.68, 450,533.48 and 89,963.56 is: 134,949.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,345.68 : 450,533.48 = 89,963.56 : x
  2. Step 2: Convert to fraction form
    300,345.68/450,533.48 = 89,963.56/x
  3. Step 3: Cross multiply
    300,345.68x = 450,533.48 × 89,963.56
  4. Step 4: Simplify right side
    300,345.68x = 40,531,595,759.99
  5. Step 5: Solve for x
    x = 40,531,595,759.99/300,345.68
  6. Step 6: Final answer
    x = 134,949.82

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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.