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Finding the Fourth Proportional to 370,198.80, 554,974.20 and 251,485.20

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Solution

The fourth proportional to 370,198.80, 554,974.20 and 251,485.20 is: 377,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,198.80 : 554,974.20 = 251,485.20 : x
  2. Step 2: Convert to fraction form
    370,198.80/554,974.20 = 251,485.20/x
  3. Step 3: Cross multiply
    370,198.80x = 554,974.20 × 251,485.20
  4. Step 4: Simplify right side
    370,198.80x = 139,567,797,681.84
  5. Step 5: Solve for x
    x = 139,567,797,681.84/370,198.80
  6. Step 6: Final answer
    x = 377,007.70

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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.