Home / 255,429.21-352,438.38-147,992.70

Finding the Fourth Proportional to 255,429.21, 352,438.38 and 147,992.70

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Solution

The fourth proportional to 255,429.21, 352,438.38 and 147,992.70 is: 204,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,429.21 : 352,438.38 = 147,992.70 : x
  2. Step 2: Convert to fraction form
    255,429.21/352,438.38 = 147,992.70/x
  3. Step 3: Cross multiply
    255,429.21x = 352,438.38 × 147,992.70
  4. Step 4: Simplify right side
    255,429.21x = 52,158,307,439.83
  5. Step 5: Solve for x
    x = 52,158,307,439.83/255,429.21
  6. Step 6: Final answer
    x = 204,198.68

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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.