Home / 351,936.80-527,900.40-115,287.20

Finding the Fourth Proportional to 351,936.80, 527,900.40 and 115,287.20

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Solution

The fourth proportional to 351,936.80, 527,900.40 and 115,287.20 is: 172,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,936.80 : 527,900.40 = 115,287.20 : x
  2. Step 2: Convert to fraction form
    351,936.80/527,900.40 = 115,287.20/x
  3. Step 3: Cross multiply
    351,936.80x = 527,900.40 × 115,287.20
  4. Step 4: Simplify right side
    351,936.80x = 60,860,158,994.88
  5. Step 5: Solve for x
    x = 60,860,158,994.88/351,936.80
  6. Step 6: Final answer
    x = 172,929.23

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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.