Home / 318,217.09-439,139.64-174,986.77

Finding the Fourth Proportional to 318,217.09, 439,139.64 and 174,986.77

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Solution

The fourth proportional to 318,217.09, 439,139.64 and 174,986.77 is: 241,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,217.09 : 439,139.64 = 174,986.77 : x
  2. Step 2: Convert to fraction form
    318,217.09/439,139.64 = 174,986.77/x
  3. Step 3: Cross multiply
    318,217.09x = 439,139.64 × 174,986.77
  4. Step 4: Simplify right side
    318,217.09x = 76,843,627,182.56
  5. Step 5: Solve for x
    x = 76,843,627,182.56/318,217.09
  6. Step 6: Final answer
    x = 241,481.77

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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.