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Finding the Fourth Proportional to 443,571.64, 665,620.98 and 163,285.72

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Solution

The fourth proportional to 443,571.64, 665,620.98 and 163,285.72 is: 245,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,571.64 : 665,620.98 = 163,285.72 : x
  2. Step 2: Convert to fraction form
    443,571.64/665,620.98 = 163,285.72/x
  3. Step 3: Cross multiply
    443,571.64x = 665,620.98 × 163,285.72
  4. Step 4: Simplify right side
    443,571.64x = 108,686,400,966.41
  5. Step 5: Solve for x
    x = 108,686,400,966.41/443,571.64
  6. Step 6: Final answer
    x = 245,025.59

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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.