Home / 352,914.80-529,372.20-212,601.20

Finding the Fourth Proportional to 352,914.80, 529,372.20 and 212,601.20

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Solution

The fourth proportional to 352,914.80, 529,372.20 and 212,601.20 is: 318,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,914.80 : 529,372.20 = 212,601.20 : x
  2. Step 2: Convert to fraction form
    352,914.80/529,372.20 = 212,601.20/x
  3. Step 3: Cross multiply
    352,914.80x = 529,372.20 × 212,601.20
  4. Step 4: Simplify right side
    352,914.80x = 112,545,164,966.64
  5. Step 5: Solve for x
    x = 112,545,164,966.64/352,914.80
  6. Step 6: Final answer
    x = 318,901.80

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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.