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Finding the Fourth Proportional to 441,991.40, 662,987.10 and 161,472.20

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Solution

The fourth proportional to 441,991.40, 662,987.10 and 161,472.20 is: 242,208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,991.40 : 662,987.10 = 161,472.20 : x
  2. Step 2: Convert to fraction form
    441,991.40/662,987.10 = 161,472.20/x
  3. Step 3: Cross multiply
    441,991.40x = 662,987.10 × 161,472.20
  4. Step 4: Simplify right side
    441,991.40x = 107,053,985,608.62
  5. Step 5: Solve for x
    x = 107,053,985,608.62/441,991.40
  6. Step 6: Final answer
    x = 242,208.30

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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.