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Finding the Fourth Proportional to 492,090.40, 737,552.40 and 255,311.20

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Solution

The fourth proportional to 492,090.40, 737,552.40 and 255,311.20 is: 382,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,090.40 : 737,552.40 = 255,311.20 : x
  2. Step 2: Convert to fraction form
    492,090.40/737,552.40 = 255,311.20/x
  3. Step 3: Cross multiply
    492,090.40x = 737,552.40 × 255,311.20
  4. Step 4: Simplify right side
    492,090.40x = 188,305,388,306.88
  5. Step 5: Solve for x
    x = 188,305,388,306.88/492,090.40
  6. Step 6: Final answer
    x = 382,664.22

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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.