Home / 389,592.44-537,645.96-215,162.12

Finding the Fourth Proportional to 389,592.44, 537,645.96 and 215,162.12

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Solution

The fourth proportional to 389,592.44, 537,645.96 and 215,162.12 is: 296,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,592.44 : 537,645.96 = 215,162.12 : x
  2. Step 2: Convert to fraction form
    389,592.44/537,645.96 = 215,162.12/x
  3. Step 3: Cross multiply
    389,592.44x = 537,645.96 × 215,162.12
  4. Step 4: Simplify right side
    389,592.44x = 115,681,044,563.04
  5. Step 5: Solve for x
    x = 115,681,044,563.04/389,592.44
  6. Step 6: Final answer
    x = 296,928.36

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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.