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Finding the Fourth Proportional to 505,468.94, 757,949.87 and 168,391.08

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Solution

The fourth proportional to 505,468.94, 757,949.87 and 168,391.08 is: 252,502.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,468.94 : 757,949.87 = 168,391.08 : x
  2. Step 2: Convert to fraction form
    505,468.94/757,949.87 = 168,391.08/x
  3. Step 3: Cross multiply
    505,468.94x = 757,949.87 × 168,391.08
  4. Step 4: Simplify right side
    505,468.94x = 127,631,997,616.14
  5. Step 5: Solve for x
    x = 127,631,997,616.14/505,468.94
  6. Step 6: Final answer
    x = 252,502.16

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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.