Home / 300,313.20-450,336.96-89,911.92

Finding the Fourth Proportional to 300,313.20, 450,336.96 and 89,911.92

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Solution

The fourth proportional to 300,313.20, 450,336.96 and 89,911.92 is: 134,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,313.20 : 450,336.96 = 89,911.92 : x
  2. Step 2: Convert to fraction form
    300,313.20/450,336.96 = 89,911.92/x
  3. Step 3: Cross multiply
    300,313.20x = 450,336.96 × 89,911.92
  4. Step 4: Simplify right side
    300,313.20x = 40,490,660,720.56
  5. Step 5: Solve for x
    x = 40,490,660,720.56/300,313.20
  6. Step 6: Final answer
    x = 134,828.11

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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.