Home / 339,830.25-509,712.45-103,174.98

Finding the Fourth Proportional to 339,830.25, 509,712.45 and 103,174.98

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Solution

The fourth proportional to 339,830.25, 509,712.45 and 103,174.98 is: 154,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,830.25 : 509,712.45 = 103,174.98 : x
  2. Step 2: Convert to fraction form
    339,830.25/509,712.45 = 103,174.98/x
  3. Step 3: Cross multiply
    339,830.25x = 509,712.45 × 103,174.98
  4. Step 4: Simplify right side
    339,830.25x = 52,589,571,834.50
  5. Step 5: Solve for x
    x = 52,589,571,834.50/339,830.25
  6. Step 6: Final answer
    x = 154,752.47

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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.