Home / 298,140.12-447,308.64-120,550.28

Finding the Fourth Proportional to 298,140.12, 447,308.64 and 120,550.28

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Solution

The fourth proportional to 298,140.12, 447,308.64 and 120,550.28 is: 180,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,140.12 : 447,308.64 = 120,550.28 : x
  2. Step 2: Convert to fraction form
    298,140.12/447,308.64 = 120,550.28/x
  3. Step 3: Cross multiply
    298,140.12x = 447,308.64 × 120,550.28
  4. Step 4: Simplify right side
    298,140.12x = 53,923,179,561.88
  5. Step 5: Solve for x
    x = 53,923,179,561.88/298,140.12
  6. Step 6: Final answer
    x = 180,865.22

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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.