Home / 492,128.41-738,272.12-207,861.69

Finding the Fourth Proportional to 492,128.41, 738,272.12 and 207,861.69

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Solution

The fourth proportional to 492,128.41, 738,272.12 and 207,861.69 is: 311,826.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,128.41 : 738,272.12 = 207,861.69 : x
  2. Step 2: Convert to fraction form
    492,128.41/738,272.12 = 207,861.69/x
  3. Step 3: Cross multiply
    492,128.41x = 738,272.12 × 207,861.69
  4. Step 4: Simplify right side
    492,128.41x = 153,458,489,503.77
  5. Step 5: Solve for x
    x = 153,458,489,503.77/492,128.41
  6. Step 6: Final answer
    x = 311,826.12

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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.