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Finding the Fourth Proportional to 378,036.60, 567,054.90 and 218,604.30

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Solution

The fourth proportional to 378,036.60, 567,054.90 and 218,604.30 is: 327,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,036.60 : 567,054.90 = 218,604.30 : x
  2. Step 2: Convert to fraction form
    378,036.60/567,054.90 = 218,604.30/x
  3. Step 3: Cross multiply
    378,036.60x = 567,054.90 × 218,604.30
  4. Step 4: Simplify right side
    378,036.60x = 123,960,639,476.07
  5. Step 5: Solve for x
    x = 123,960,639,476.07/378,036.60
  6. Step 6: Final answer
    x = 327,906.45

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1.5x scale

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.