Home / 389,140.87-536,932.36-236,259.44

Finding the Fourth Proportional to 389,140.87, 536,932.36 and 236,259.44

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Solution

The fourth proportional to 389,140.87, 536,932.36 and 236,259.44 is: 325,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,140.87 : 536,932.36 = 236,259.44 : x
  2. Step 2: Convert to fraction form
    389,140.87/536,932.36 = 236,259.44/x
  3. Step 3: Cross multiply
    389,140.87x = 536,932.36 × 236,259.44
  4. Step 4: Simplify right side
    389,140.87x = 126,855,338,691.48
  5. Step 5: Solve for x
    x = 126,855,338,691.48/389,140.87
  6. Step 6: Final answer
    x = 325,988.22

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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.