Home / 318,928.10-477,736.05-219,200.90

Finding the Fourth Proportional to 318,928.10, 477,736.05 and 219,200.90

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Solution

The fourth proportional to 318,928.10, 477,736.05 and 219,200.90 is: 328,350.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,928.10 : 477,736.05 = 219,200.90 : x
  2. Step 2: Convert to fraction form
    318,928.10/477,736.05 = 219,200.90/x
  3. Step 3: Cross multiply
    318,928.10x = 477,736.05 × 219,200.90
  4. Step 4: Simplify right side
    318,928.10x = 104,720,172,122.45
  5. Step 5: Solve for x
    x = 104,720,172,122.45/318,928.10
  6. Step 6: Final answer
    x = 328,350.41

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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.