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Finding the Fourth Proportional to 505,418.97, 758,076.40 and 168,423.19

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Solution

The fourth proportional to 505,418.97, 758,076.40 and 168,423.19 is: 252,617.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,418.97 : 758,076.40 = 168,423.19 : x
  2. Step 2: Convert to fraction form
    505,418.97/758,076.40 = 168,423.19/x
  3. Step 3: Cross multiply
    505,418.97x = 758,076.40 × 168,423.19
  4. Step 4: Simplify right side
    505,418.97x = 127,677,645,551.72
  5. Step 5: Solve for x
    x = 127,677,645,551.72/505,418.97
  6. Step 6: Final answer
    x = 252,617.44

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1.5x scale

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.