Home / 255,761.46-383,771.79-172,480.50

Finding the Fourth Proportional to 255,761.46, 383,771.79 and 172,480.50

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Solution

The fourth proportional to 255,761.46, 383,771.79 and 172,480.50 is: 258,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,761.46 : 383,771.79 = 172,480.50 : x
  2. Step 2: Convert to fraction form
    255,761.46/383,771.79 = 172,480.50/x
  3. Step 3: Cross multiply
    255,761.46x = 383,771.79 × 172,480.50
  4. Step 4: Simplify right side
    255,761.46x = 66,193,150,225.10
  5. Step 5: Solve for x
    x = 66,193,150,225.10/255,761.46
  6. Step 6: Final answer
    x = 258,808.15

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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.