Home / 257,826.48-355,821.98-143,115.90

Finding the Fourth Proportional to 257,826.48, 355,821.98 and 143,115.90

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Solution

The fourth proportional to 257,826.48, 355,821.98 and 143,115.90 is: 197,511.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,826.48 : 355,821.98 = 143,115.90 : x
  2. Step 2: Convert to fraction form
    257,826.48/355,821.98 = 143,115.90/x
  3. Step 3: Cross multiply
    257,826.48x = 355,821.98 × 143,115.90
  4. Step 4: Simplify right side
    257,826.48x = 50,923,782,191.90
  5. Step 5: Solve for x
    x = 50,923,782,191.90/257,826.48
  6. Step 6: Final answer
    x = 197,511.84

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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.