Home / 391,930.03-540,847.69-230,791.87

Finding the Fourth Proportional to 391,930.03, 540,847.69 and 230,791.87

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Solution

The fourth proportional to 391,930.03, 540,847.69 and 230,791.87 is: 318,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,930.03 : 540,847.69 = 230,791.87 : x
  2. Step 2: Convert to fraction form
    391,930.03/540,847.69 = 230,791.87/x
  3. Step 3: Cross multiply
    391,930.03x = 540,847.69 × 230,791.87
  4. Step 4: Simplify right side
    391,930.03x = 124,823,249,760.28
  5. Step 5: Solve for x
    x = 124,823,249,760.28/391,930.03
  6. Step 6: Final answer
    x = 318,483.51

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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.