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Finding the Fourth Proportional to 443,818.36, 665,661.93 and 163,270

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Solution

The fourth proportional to 443,818.36, 665,661.93 and 163,270 is: 244,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,818.36 : 665,661.93 = 163,270 : x
  2. Step 2: Convert to fraction form
    443,818.36/665,661.93 = 163,270/x
  3. Step 3: Cross multiply
    443,818.36x = 665,661.93 × 163,270
  4. Step 4: Simplify right side
    443,818.36x = 108,682,623,311.10
  5. Step 5: Solve for x
    x = 108,682,623,311.10/443,818.36
  6. Step 6: Final answer
    x = 244,880.86

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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.