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Finding the Fourth Proportional to 378,209.70, 567,314.55 and 344,967.30

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Solution

The fourth proportional to 378,209.70, 567,314.55 and 344,967.30 is: 517,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,209.70 : 567,314.55 = 344,967.30 : x
  2. Step 2: Convert to fraction form
    378,209.70/567,314.55 = 344,967.30/x
  3. Step 3: Cross multiply
    378,209.70x = 567,314.55 × 344,967.30
  4. Step 4: Simplify right side
    378,209.70x = 195,704,968,564.22
  5. Step 5: Solve for x
    x = 195,704,968,564.22/378,209.70
  6. Step 6: Final answer
    x = 517,450.95

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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.