Home / 170,872.20-256,308.30-162,318.60

Finding the Fourth Proportional to 170,872.20, 256,308.30 and 162,318.60

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Solution

The fourth proportional to 170,872.20, 256,308.30 and 162,318.60 is: 243,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,872.20 : 256,308.30 = 162,318.60 : x
  2. Step 2: Convert to fraction form
    170,872.20/256,308.30 = 162,318.60/x
  3. Step 3: Cross multiply
    170,872.20x = 256,308.30 × 162,318.60
  4. Step 4: Simplify right side
    170,872.20x = 41,603,604,424.38
  5. Step 5: Solve for x
    x = 41,603,604,424.38/170,872.20
  6. Step 6: Final answer
    x = 243,477.90

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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.