Home / 389,743.96-537,845.82-210,895.96

Finding the Fourth Proportional to 389,743.96, 537,845.82 and 210,895.96

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Solution

The fourth proportional to 389,743.96, 537,845.82 and 210,895.96 is: 291,035.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,743.96 : 537,845.82 = 210,895.96 : x
  2. Step 2: Convert to fraction form
    389,743.96/537,845.82 = 210,895.96/x
  3. Step 3: Cross multiply
    389,743.96x = 537,845.82 × 210,895.96
  4. Step 4: Simplify right side
    389,743.96x = 113,429,510,540.89
  5. Step 5: Solve for x
    x = 113,429,510,540.89/389,743.96
  6. Step 6: Final answer
    x = 291,035.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.