Home / 318,183.76-439,084.35-180,375.47

Finding the Fourth Proportional to 318,183.76, 439,084.35 and 180,375.47

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Solution

The fourth proportional to 318,183.76, 439,084.35 and 180,375.47 is: 248,912.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,183.76 : 439,084.35 = 180,375.47 : x
  2. Step 2: Convert to fraction form
    318,183.76/439,084.35 = 180,375.47/x
  3. Step 3: Cross multiply
    318,183.76x = 439,084.35 × 180,375.47
  4. Step 4: Simplify right side
    318,183.76x = 79,200,046,000.89
  5. Step 5: Solve for x
    x = 79,200,046,000.89/318,183.76
  6. Step 6: Final answer
    x = 248,912.91

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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.