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Finding the Fourth Proportional to 300,347.68, 450,536.49 and 89,965.57

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Solution

The fourth proportional to 300,347.68, 450,536.49 and 89,965.57 is: 134,952.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,347.68 : 450,536.49 = 89,965.57 : x
  2. Step 2: Convert to fraction form
    300,347.68/450,536.49 = 89,965.57/x
  3. Step 3: Cross multiply
    300,347.68x = 450,536.49 × 89,965.57
  4. Step 4: Simplify right side
    300,347.68x = 40,532,772,128.65
  5. Step 5: Solve for x
    x = 40,532,772,128.65/300,347.68
  6. Step 6: Final answer
    x = 134,952.84

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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.