Home / 389,269.12-537,190.50-219,502.03

Finding the Fourth Proportional to 389,269.12, 537,190.50 and 219,502.03

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Solution

The fourth proportional to 389,269.12, 537,190.50 and 219,502.03 is: 302,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,269.12 : 537,190.50 = 219,502.03 : x
  2. Step 2: Convert to fraction form
    389,269.12/537,190.50 = 219,502.03/x
  3. Step 3: Cross multiply
    389,269.12x = 537,190.50 × 219,502.03
  4. Step 4: Simplify right side
    389,269.12x = 117,914,405,246.72
  5. Step 5: Solve for x
    x = 117,914,405,246.72/389,269.12
  6. Step 6: Final answer
    x = 302,912.30

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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.