Home / 257,617.76-355,439.83-166,977.55

Finding the Fourth Proportional to 257,617.76, 355,439.83 and 166,977.55

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Solution

The fourth proportional to 257,617.76, 355,439.83 and 166,977.55 is: 230,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,617.76 : 355,439.83 = 166,977.55 : x
  2. Step 2: Convert to fraction form
    257,617.76/355,439.83 = 166,977.55/x
  3. Step 3: Cross multiply
    257,617.76x = 355,439.83 × 166,977.55
  4. Step 4: Simplify right side
    257,617.76x = 59,350,469,373.73
  5. Step 5: Solve for x
    x = 59,350,469,373.73/257,617.76
  6. Step 6: Final answer
    x = 230,381.90

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1.5x scale

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.