Home / 339,760.65-509,644.04-103,103.32

Finding the Fourth Proportional to 339,760.65, 509,644.04 and 103,103.32

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Solution

The fourth proportional to 339,760.65, 509,644.04 and 103,103.32 is: 154,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,760.65 : 509,644.04 = 103,103.32 : x
  2. Step 2: Convert to fraction form
    339,760.65/509,644.04 = 103,103.32/x
  3. Step 3: Cross multiply
    339,760.65x = 509,644.04 × 103,103.32
  4. Step 4: Simplify right side
    339,760.65x = 52,545,992,542.21
  5. Step 5: Solve for x
    x = 52,545,992,542.21/339,760.65
  6. Step 6: Final answer
    x = 154,655.91

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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.