Home / 257,197.64-355,025.90-209,367.95

Finding the Fourth Proportional to 257,197.64, 355,025.90 and 209,367.95

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Solution

The fourth proportional to 257,197.64, 355,025.90 and 209,367.95 is: 289,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,197.64 : 355,025.90 = 209,367.95 : x
  2. Step 2: Convert to fraction form
    257,197.64/355,025.90 = 209,367.95/x
  3. Step 3: Cross multiply
    257,197.64x = 355,025.90 × 209,367.95
  4. Step 4: Simplify right side
    257,197.64x = 74,331,043,628.20
  5. Step 5: Solve for x
    x = 74,331,043,628.20/257,197.64
  6. Step 6: Final answer
    x = 289,003.60

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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.