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Finding the Fourth Proportional to 505,819.28, 758,779.99 and 164,248.42

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Solution

The fourth proportional to 505,819.28, 758,779.99 and 164,248.42 is: 246,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,819.28 : 758,779.99 = 164,248.42 : x
  2. Step 2: Convert to fraction form
    505,819.28/758,779.99 = 164,248.42/x
  3. Step 3: Cross multiply
    505,819.28x = 758,779.99 × 164,248.42
  4. Step 4: Simplify right side
    505,819.28x = 124,628,414,485.12
  5. Step 5: Solve for x
    x = 124,628,414,485.12/505,819.28
  6. Step 6: Final answer
    x = 246,389.21

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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.