Home / 258,375.42-387,651.93-116,320.29

Finding the Fourth Proportional to 258,375.42, 387,651.93 and 116,320.29

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Solution

The fourth proportional to 258,375.42, 387,651.93 and 116,320.29 is: 174,520.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,375.42 : 387,651.93 = 116,320.29 : x
  2. Step 2: Convert to fraction form
    258,375.42/387,651.93 = 116,320.29/x
  3. Step 3: Cross multiply
    258,375.42x = 387,651.93 × 116,320.29
  4. Step 4: Simplify right side
    258,375.42x = 45,091,785,643.62
  5. Step 5: Solve for x
    x = 45,091,785,643.62/258,375.42
  6. Step 6: Final answer
    x = 174,520.42

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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.