Home / 258,905.62-357,286.88-144,181.76

Finding the Fourth Proportional to 258,905.62, 357,286.88 and 144,181.76

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Solution

The fourth proportional to 258,905.62, 357,286.88 and 144,181.76 is: 198,969.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,905.62 : 357,286.88 = 144,181.76 : x
  2. Step 2: Convert to fraction form
    258,905.62/357,286.88 = 144,181.76/x
  3. Step 3: Cross multiply
    258,905.62x = 357,286.88 × 144,181.76
  4. Step 4: Simplify right side
    258,905.62x = 51,514,250,822.85
  5. Step 5: Solve for x
    x = 51,514,250,822.85/258,905.62
  6. Step 6: Final answer
    x = 198,969.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.