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Finding the Fourth Proportional to 442,420.96, 663,630.96 and 109,996.96

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Solution

The fourth proportional to 442,420.96, 663,630.96 and 109,996.96 is: 164,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,420.96 : 663,630.96 = 109,996.96 : x
  2. Step 2: Convert to fraction form
    442,420.96/663,630.96 = 109,996.96/x
  3. Step 3: Cross multiply
    442,420.96x = 663,630.96 × 109,996.96
  4. Step 4: Simplify right side
    442,420.96x = 72,997,388,161.88
  5. Step 5: Solve for x
    x = 72,997,388,161.88/442,420.96
  6. Step 6: Final answer
    x = 164,995.32

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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.