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Finding the Fourth Proportional to 443,291.40, 664,937.10 and 162,772.20

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Solution

The fourth proportional to 443,291.40, 664,937.10 and 162,772.20 is: 244,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,291.40 : 664,937.10 = 162,772.20 : x
  2. Step 2: Convert to fraction form
    443,291.40/664,937.10 = 162,772.20/x
  3. Step 3: Cross multiply
    443,291.40x = 664,937.10 × 162,772.20
  4. Step 4: Simplify right side
    443,291.40x = 108,233,274,628.62
  5. Step 5: Solve for x
    x = 108,233,274,628.62/443,291.40
  6. Step 6: Final answer
    x = 244,158.30

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1.5x scale

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.