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Finding the Fourth Proportional to 230,485.80, 345,603.41 and 103,977.88

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Solution

The fourth proportional to 230,485.80, 345,603.41 and 103,977.88 is: 155,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,485.80 : 345,603.41 = 103,977.88 : x
  2. Step 2: Convert to fraction form
    230,485.80/345,603.41 = 103,977.88/x
  3. Step 3: Cross multiply
    230,485.80x = 345,603.41 × 103,977.88
  4. Step 4: Simplify right side
    230,485.80x = 35,935,108,898.59
  5. Step 5: Solve for x
    x = 35,935,108,898.59/230,485.80
  6. Step 6: Final answer
    x = 155,910.29

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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.