Home / 352,918.80-529,378.20-212,950.80

Finding the Fourth Proportional to 352,918.80, 529,378.20 and 212,950.80

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Solution

The fourth proportional to 352,918.80, 529,378.20 and 212,950.80 is: 319,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,918.80 : 529,378.20 = 212,950.80 : x
  2. Step 2: Convert to fraction form
    352,918.80/529,378.20 = 212,950.80/x
  3. Step 3: Cross multiply
    352,918.80x = 529,378.20 × 212,950.80
  4. Step 4: Simplify right side
    352,918.80x = 112,731,511,192.56
  5. Step 5: Solve for x
    x = 112,731,511,192.56/352,918.80
  6. Step 6: Final answer
    x = 319,426.20

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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.