Home / 257,606.24-355,496.73-142,880.90

Finding the Fourth Proportional to 257,606.24, 355,496.73 and 142,880.90

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Solution

The fourth proportional to 257,606.24, 355,496.73 and 142,880.90 is: 197,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,606.24 : 355,496.73 = 142,880.90 : x
  2. Step 2: Convert to fraction form
    257,606.24/355,496.73 = 142,880.90/x
  3. Step 3: Cross multiply
    257,606.24x = 355,496.73 × 142,880.90
  4. Step 4: Simplify right side
    257,606.24x = 50,793,692,729.46
  5. Step 5: Solve for x
    x = 50,793,692,729.46/257,606.24
  6. Step 6: Final answer
    x = 197,175.71

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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.