Home / 361,850.09-499,341.31-218,585.18

Finding the Fourth Proportional to 361,850.09, 499,341.31 and 218,585.18

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Solution

The fourth proportional to 361,850.09, 499,341.31 and 218,585.18 is: 301,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,850.09 : 499,341.31 = 218,585.18 : x
  2. Step 2: Convert to fraction form
    361,850.09/499,341.31 = 218,585.18/x
  3. Step 3: Cross multiply
    361,850.09x = 499,341.31 × 218,585.18
  4. Step 4: Simplify right side
    361,850.09x = 109,148,610,829.68
  5. Step 5: Solve for x
    x = 109,148,610,829.68/361,850.09
  6. Step 6: Final answer
    x = 301,640.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.