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Finding the Fourth Proportional to 217,850.40, 326,775.60 and 180,986.40

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Solution

The fourth proportional to 217,850.40, 326,775.60 and 180,986.40 is: 271,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,850.40 : 326,775.60 = 180,986.40 : x
  2. Step 2: Convert to fraction form
    217,850.40/326,775.60 = 180,986.40/x
  3. Step 3: Cross multiply
    217,850.40x = 326,775.60 × 180,986.40
  4. Step 4: Simplify right side
    217,850.40x = 59,141,939,451.84
  5. Step 5: Solve for x
    x = 59,141,939,451.84/217,850.40
  6. Step 6: Final answer
    x = 271,479.60

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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.