Home / 421,218.24-581,280.33-239,930.10

Finding the Fourth Proportional to 421,218.24, 581,280.33 and 239,930.10

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Solution

The fourth proportional to 421,218.24, 581,280.33 and 239,930.10 is: 331,103.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,218.24 : 581,280.33 = 239,930.10 : x
  2. Step 2: Convert to fraction form
    421,218.24/581,280.33 = 239,930.10/x
  3. Step 3: Cross multiply
    421,218.24x = 581,280.33 × 239,930.10
  4. Step 4: Simplify right side
    421,218.24x = 139,466,647,704.93
  5. Step 5: Solve for x
    x = 139,466,647,704.93/421,218.24
  6. Step 6: Final answer
    x = 331,103.06

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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.