Home / 338,517.36-505,833.12-258,113.52

Finding the Fourth Proportional to 338,517.36, 505,833.12 and 258,113.52

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Solution

The fourth proportional to 338,517.36, 505,833.12 and 258,113.52 is: 385,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,517.36 : 505,833.12 = 258,113.52 : x
  2. Step 2: Convert to fraction form
    338,517.36/505,833.12 = 258,113.52/x
  3. Step 3: Cross multiply
    338,517.36x = 505,833.12 × 258,113.52
  4. Step 4: Simplify right side
    338,517.36x = 130,562,367,135.78
  5. Step 5: Solve for x
    x = 130,562,367,135.78/338,517.36
  6. Step 6: Final answer
    x = 385,688.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.