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Finding the Fourth Proportional to 442,967.72, 611,232.90 and 251,997.80

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Solution

The fourth proportional to 442,967.72, 611,232.90 and 251,997.80 is: 347,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,967.72 : 611,232.90 = 251,997.80 : x
  2. Step 2: Convert to fraction form
    442,967.72/611,232.90 = 251,997.80/x
  3. Step 3: Cross multiply
    442,967.72x = 611,232.90 × 251,997.80
  4. Step 4: Simplify right side
    442,967.72x = 154,029,346,087.62
  5. Step 5: Solve for x
    x = 154,029,346,087.62/442,967.72
  6. Step 6: Final answer
    x = 347,721.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.