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Finding the Fourth Proportional to 300,346.68, 450,534.98 and 89,964.56

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Solution

The fourth proportional to 300,346.68, 450,534.98 and 89,964.56 is: 134,951.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,346.68 : 450,534.98 = 89,964.56 : x
  2. Step 2: Convert to fraction form
    300,346.68/450,534.98 = 89,964.56/x
  3. Step 3: Cross multiply
    300,346.68x = 450,534.98 × 89,964.56
  4. Step 4: Simplify right side
    300,346.68x = 40,532,181,240.31
  5. Step 5: Solve for x
    x = 40,532,181,240.31/300,346.68
  6. Step 6: Final answer
    x = 134,951.32

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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.