Home / 255,939.45-383,909.10-137,447.79

Finding the Fourth Proportional to 255,939.45, 383,909.10 and 137,447.79

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Solution

The fourth proportional to 255,939.45, 383,909.10 and 137,447.79 is: 206,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,939.45 : 383,909.10 = 137,447.79 : x
  2. Step 2: Convert to fraction form
    255,939.45/383,909.10 = 137,447.79/x
  3. Step 3: Cross multiply
    255,939.45x = 383,909.10 × 137,447.79
  4. Step 4: Simplify right side
    255,939.45x = 52,767,457,355.89
  5. Step 5: Solve for x
    x = 52,767,457,355.89/255,939.45
  6. Step 6: Final answer
    x = 206,171.64

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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.