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Finding the Fourth Proportional to 389,793.11, 537,914.48 and 210,945.11

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Solution

The fourth proportional to 389,793.11, 537,914.48 and 210,945.11 is: 291,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,793.11 : 537,914.48 = 210,945.11 : x
  2. Step 2: Convert to fraction form
    389,793.11/537,914.48 = 210,945.11/x
  3. Step 3: Cross multiply
    389,793.11x = 537,914.48 × 210,945.11
  4. Step 4: Simplify right side
    389,793.11x = 113,470,429,154.19
  5. Step 5: Solve for x
    x = 113,470,429,154.19/389,793.11
  6. Step 6: Final answer
    x = 291,104.25

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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.