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Finding the Fourth Proportional to 443,004.72, 664,361.28 and 243,550.32

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Solution

The fourth proportional to 443,004.72, 664,361.28 and 243,550.32 is: 365,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,004.72 : 664,361.28 = 243,550.32 : x
  2. Step 2: Convert to fraction form
    443,004.72/664,361.28 = 243,550.32/x
  3. Step 3: Cross multiply
    443,004.72x = 664,361.28 × 243,550.32
  4. Step 4: Simplify right side
    443,004.72x = 161,805,402,339.61
  5. Step 5: Solve for x
    x = 161,805,402,339.61/443,004.72
  6. Step 6: Final answer
    x = 365,245.32

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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.