Home / 339,799.67-509,381.16-115,002.72

Finding the Fourth Proportional to 339,799.67, 509,381.16 and 115,002.72

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Solution

The fourth proportional to 339,799.67, 509,381.16 and 115,002.72 is: 172,396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,799.67 : 509,381.16 = 115,002.72 : x
  2. Step 2: Convert to fraction form
    339,799.67/509,381.16 = 115,002.72/x
  3. Step 3: Cross multiply
    339,799.67x = 509,381.16 × 115,002.72
  4. Step 4: Simplify right side
    339,799.67x = 58,580,219,455.83
  5. Step 5: Solve for x
    x = 58,580,219,455.83/339,799.67
  6. Step 6: Final answer
    x = 172,396.34

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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.