Home / 323,928.39-485,903.97-87,276.75

Finding the Fourth Proportional to 323,928.39, 485,903.97 and 87,276.75

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Solution

The fourth proportional to 323,928.39, 485,903.97 and 87,276.75 is: 130,918.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,928.39 : 485,903.97 = 87,276.75 : x
  2. Step 2: Convert to fraction form
    323,928.39/485,903.97 = 87,276.75/x
  3. Step 3: Cross multiply
    323,928.39x = 485,903.97 × 87,276.75
  4. Step 4: Simplify right side
    323,928.39x = 42,408,119,313.70
  5. Step 5: Solve for x
    x = 42,408,119,313.70/323,928.39
  6. Step 6: Final answer
    x = 130,918.19

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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.