Home / 339,864.86-509,764.25-103,209.59

Finding the Fourth Proportional to 339,864.86, 509,764.25 and 103,209.59

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Solution

The fourth proportional to 339,864.86, 509,764.25 and 103,209.59 is: 154,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,864.86 : 509,764.25 = 103,209.59 : x
  2. Step 2: Convert to fraction form
    339,864.86/509,764.25 = 103,209.59/x
  3. Step 3: Cross multiply
    339,864.86x = 509,764.25 × 103,209.59
  4. Step 4: Simplify right side
    339,864.86x = 52,612,560,771.59
  5. Step 5: Solve for x
    x = 52,612,560,771.59/339,864.86
  6. Step 6: Final answer
    x = 154,804.35

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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.