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Finding the Fourth Proportional to 505,466.62, 757,946.40 and 168,388.77

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Solution

The fourth proportional to 505,466.62, 757,946.40 and 168,388.77 is: 252,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,466.62 : 757,946.40 = 168,388.77 : x
  2. Step 2: Convert to fraction form
    505,466.62/757,946.40 = 168,388.77/x
  3. Step 3: Cross multiply
    505,466.62x = 757,946.40 × 168,388.77
  4. Step 4: Simplify right side
    505,466.62x = 127,629,662,021.93
  5. Step 5: Solve for x
    x = 127,629,662,021.93/505,466.62
  6. Step 6: Final answer
    x = 252,498.70

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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.