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Finding the Fourth Proportional to 300,092.80, 449,534.40 and 187,427.20

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Solution

The fourth proportional to 300,092.80, 449,534.40 and 187,427.20 is: 280,763.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,092.80 : 449,534.40 = 187,427.20 : x
  2. Step 2: Convert to fraction form
    300,092.80/449,534.40 = 187,427.20/x
  3. Step 3: Cross multiply
    300,092.80x = 449,534.40 × 187,427.20
  4. Step 4: Simplify right side
    300,092.80x = 84,254,973,895.68
  5. Step 5: Solve for x
    x = 84,254,973,895.68/300,092.80
  6. Step 6: Final answer
    x = 280,763.06

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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.