Home / 255,904.55-383,745.28-135,935.22

Finding the Fourth Proportional to 255,904.55, 383,745.28 and 135,935.22

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Solution

The fourth proportional to 255,904.55, 383,745.28 and 135,935.22 is: 203,843.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,904.55 : 383,745.28 = 135,935.22 : x
  2. Step 2: Convert to fraction form
    255,904.55/383,745.28 = 135,935.22/x
  3. Step 3: Cross multiply
    255,904.55x = 383,745.28 × 135,935.22
  4. Step 4: Simplify right side
    255,904.55x = 52,164,499,060.76
  5. Step 5: Solve for x
    x = 52,164,499,060.76/255,904.55
  6. Step 6: Final answer
    x = 203,843.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.