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Finding the Fourth Proportional to 282,453, 423,679.11 and 72,090.96

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Solution

The fourth proportional to 282,453, 423,679.11 and 72,090.96 is: 108,136.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,453 : 423,679.11 = 72,090.96 : x
  2. Step 2: Convert to fraction form
    282,453/423,679.11 = 72,090.96/x
  3. Step 3: Cross multiply
    282,453x = 423,679.11 × 72,090.96
  4. Step 4: Simplify right side
    282,453x = 30,543,433,771.85
  5. Step 5: Solve for x
    x = 30,543,433,771.85/282,453
  6. Step 6: Final answer
    x = 108,136.34

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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.