Home / 298,512.19-447,767.27-121,018.78

Finding the Fourth Proportional to 298,512.19, 447,767.27 and 121,018.78

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Solution

The fourth proportional to 298,512.19, 447,767.27 and 121,018.78 is: 181,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,512.19 : 447,767.27 = 121,018.78 : x
  2. Step 2: Convert to fraction form
    298,512.19/447,767.27 = 121,018.78/x
  3. Step 3: Cross multiply
    298,512.19x = 447,767.27 × 121,018.78
  4. Step 4: Simplify right side
    298,512.19x = 54,188,249,147.77
  5. Step 5: Solve for x
    x = 54,188,249,147.77/298,512.19
  6. Step 6: Final answer
    x = 181,527.76

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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.