Home / 490,905.28-736,358.82-135,920.32

Finding the Fourth Proportional to 490,905.28, 736,358.82 and 135,920.32

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Solution

The fourth proportional to 490,905.28, 736,358.82 and 135,920.32 is: 203,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,905.28 : 736,358.82 = 135,920.32 : x
  2. Step 2: Convert to fraction form
    490,905.28/736,358.82 = 135,920.32/x
  3. Step 3: Cross multiply
    490,905.28x = 736,358.82 × 135,920.32
  4. Step 4: Simplify right side
    490,905.28x = 100,086,126,449.22
  5. Step 5: Solve for x
    x = 100,086,126,449.22/490,905.28
  6. Step 6: Final answer
    x = 203,880.73

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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.