Home / 257,150.64-354,863.92-143,977.44

Finding the Fourth Proportional to 257,150.64, 354,863.92 and 143,977.44

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Solution

The fourth proportional to 257,150.64, 354,863.92 and 143,977.44 is: 198,686.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,150.64 : 354,863.92 = 143,977.44 : x
  2. Step 2: Convert to fraction form
    257,150.64/354,863.92 = 143,977.44/x
  3. Step 3: Cross multiply
    257,150.64x = 354,863.92 × 143,977.44
  4. Step 4: Simplify right side
    257,150.64x = 51,092,398,749.96
  5. Step 5: Solve for x
    x = 51,092,398,749.96/257,150.64
  6. Step 6: Final answer
    x = 198,686.65

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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.