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Finding the Fourth Proportional to 339,554.88, 509,385.06 and 102,841.20

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Solution

The fourth proportional to 339,554.88, 509,385.06 and 102,841.20 is: 154,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,554.88 : 509,385.06 = 102,841.20 : x
  2. Step 2: Convert to fraction form
    339,554.88/509,385.06 = 102,841.20/x
  3. Step 3: Cross multiply
    339,554.88x = 509,385.06 × 102,841.20
  4. Step 4: Simplify right side
    339,554.88x = 52,385,770,832.47
  5. Step 5: Solve for x
    x = 52,385,770,832.47/339,554.88
  6. Step 6: Final answer
    x = 154,277.77

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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.