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Finding the Fourth Proportional to 505,464.75, 757,943.59 and 168,386.89

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Solution

The fourth proportional to 505,464.75, 757,943.59 and 168,386.89 is: 252,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,464.75 : 757,943.59 = 168,386.89 : x
  2. Step 2: Convert to fraction form
    505,464.75/757,943.59 = 168,386.89/x
  3. Step 3: Cross multiply
    505,464.75x = 757,943.59 × 168,386.89
  4. Step 4: Simplify right side
    505,464.75x = 127,627,763,915.54
  5. Step 5: Solve for x
    x = 127,627,763,915.54/505,464.75
  6. Step 6: Final answer
    x = 252,495.87

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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.