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Finding the Fourth Proportional to 449,505.60, 673,999.20 and 169,051.20

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Solution

The fourth proportional to 449,505.60, 673,999.20 and 169,051.20 is: 253,479.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,505.60 : 673,999.20 = 169,051.20 : x
  2. Step 2: Convert to fraction form
    449,505.60/673,999.20 = 169,051.20/x
  3. Step 3: Cross multiply
    449,505.60x = 673,999.20 × 169,051.20
  4. Step 4: Simplify right side
    449,505.60x = 113,940,373,559.04
  5. Step 5: Solve for x
    x = 113,940,373,559.04/449,505.60
  6. Step 6: Final answer
    x = 253,479.32

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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.