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Finding the Fourth Proportional to 443,735.64, 665,406.18 and 275,249.16

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Solution

The fourth proportional to 443,735.64, 665,406.18 and 275,249.16 is: 412,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,735.64 : 665,406.18 = 275,249.16 : x
  2. Step 2: Convert to fraction form
    443,735.64/665,406.18 = 275,249.16/x
  3. Step 3: Cross multiply
    443,735.64x = 665,406.18 × 275,249.16
  4. Step 4: Simplify right side
    443,735.64x = 183,152,492,103.81
  5. Step 5: Solve for x
    x = 183,152,492,103.81/443,735.64
  6. Step 6: Final answer
    x = 412,751.37

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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.