Home / 210,217.31-315,344.18-60,469.77

Finding the Fourth Proportional to 210,217.31, 315,344.18 and 60,469.77

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Solution

The fourth proportional to 210,217.31, 315,344.18 and 60,469.77 is: 90,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,217.31 : 315,344.18 = 60,469.77 : x
  2. Step 2: Convert to fraction form
    210,217.31/315,344.18 = 60,469.77/x
  3. Step 3: Cross multiply
    210,217.31x = 315,344.18 × 60,469.77
  4. Step 4: Simplify right side
    210,217.31x = 19,068,790,035.44
  5. Step 5: Solve for x
    x = 19,068,790,035.44/210,217.31
  6. Step 6: Final answer
    x = 90,709.90

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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.