Home / 203,429.70-305,144.55-170,187.30

Finding the Fourth Proportional to 203,429.70, 305,144.55 and 170,187.30

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Solution

The fourth proportional to 203,429.70, 305,144.55 and 170,187.30 is: 255,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,429.70 : 305,144.55 = 170,187.30 : x
  2. Step 2: Convert to fraction form
    203,429.70/305,144.55 = 170,187.30/x
  3. Step 3: Cross multiply
    203,429.70x = 305,144.55 × 170,187.30
  4. Step 4: Simplify right side
    203,429.70x = 51,931,727,074.22
  5. Step 5: Solve for x
    x = 51,931,727,074.22/203,429.70
  6. Step 6: Final answer
    x = 255,280.95

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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.