Home / 255,375.18-383,401.35-218,174.31

Finding the Fourth Proportional to 255,375.18, 383,401.35 and 218,174.31

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Solution

The fourth proportional to 255,375.18, 383,401.35 and 218,174.31 is: 327,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,375.18 : 383,401.35 = 218,174.31 : x
  2. Step 2: Convert to fraction form
    255,375.18/383,401.35 = 218,174.31/x
  3. Step 3: Cross multiply
    255,375.18x = 383,401.35 × 218,174.31
  4. Step 4: Simplify right side
    255,375.18x = 83,648,324,989.32
  5. Step 5: Solve for x
    x = 83,648,324,989.32/255,375.18
  6. Step 6: Final answer
    x = 327,550.72

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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.