Home / 257,933.60-386,917.49-68,391.32

Finding the Fourth Proportional to 257,933.60, 386,917.49 and 68,391.32

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Solution

The fourth proportional to 257,933.60, 386,917.49 and 68,391.32 is: 102,591.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,933.60 : 386,917.49 = 68,391.32 : x
  2. Step 2: Convert to fraction form
    257,933.60/386,917.49 = 68,391.32/x
  3. Step 3: Cross multiply
    257,933.60x = 386,917.49 × 68,391.32
  4. Step 4: Simplify right side
    257,933.60x = 26,461,795,595.64
  5. Step 5: Solve for x
    x = 26,461,795,595.64/257,933.60
  6. Step 6: Final answer
    x = 102,591.50

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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.