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Finding the Fourth Proportional to 183,669.80, 275,115.90 and 144,012.20

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Solution

The fourth proportional to 183,669.80, 275,115.90 and 144,012.20 is: 215,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,669.80 : 275,115.90 = 144,012.20 : x
  2. Step 2: Convert to fraction form
    183,669.80/275,115.90 = 144,012.20/x
  3. Step 3: Cross multiply
    183,669.80x = 275,115.90 × 144,012.20
  4. Step 4: Simplify right side
    183,669.80x = 39,620,046,013.98
  5. Step 5: Solve for x
    x = 39,620,046,013.98/183,669.80
  6. Step 6: Final answer
    x = 215,713.45

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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.