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Finding the Fourth Proportional to 279,991.60, 419,987.40 and 244,999.60

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Solution

The fourth proportional to 279,991.60, 419,987.40 and 244,999.60 is: 367,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,991.60 : 419,987.40 = 244,999.60 : x
  2. Step 2: Convert to fraction form
    279,991.60/419,987.40 = 244,999.60/x
  3. Step 3: Cross multiply
    279,991.60x = 419,987.40 × 244,999.60
  4. Step 4: Simplify right side
    279,991.60x = 102,896,745,005.04
  5. Step 5: Solve for x
    x = 102,896,745,005.04/279,991.60
  6. Step 6: Final answer
    x = 367,499.40

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Similar ratio
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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.