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Finding the Fourth Proportional to 300,349.68, 450,539.49 and 89,967.57

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Solution

The fourth proportional to 300,349.68, 450,539.49 and 89,967.57 is: 134,955.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,349.68 : 450,539.49 = 89,967.57 : x
  2. Step 2: Convert to fraction form
    300,349.68/450,539.49 = 89,967.57/x
  3. Step 3: Cross multiply
    300,349.68x = 450,539.49 × 89,967.57
  4. Step 4: Simplify right side
    300,349.68x = 40,533,943,104.34
  5. Step 5: Solve for x
    x = 40,533,943,104.34/300,349.68
  6. Step 6: Final answer
    x = 134,955.84

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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.