Home / 257,835.76-355,806.52-143,114.08

Finding the Fourth Proportional to 257,835.76, 355,806.52 and 143,114.08

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Solution

The fourth proportional to 257,835.76, 355,806.52 and 143,114.08 is: 197,493.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,835.76 : 355,806.52 = 143,114.08 : x
  2. Step 2: Convert to fraction form
    257,835.76/355,806.52 = 143,114.08/x
  3. Step 3: Cross multiply
    257,835.76x = 355,806.52 × 143,114.08
  4. Step 4: Simplify right side
    257,835.76x = 50,920,921,520.50
  5. Step 5: Solve for x
    x = 50,920,921,520.50/257,835.76
  6. Step 6: Final answer
    x = 197,493.63

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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.