Home / 300,963.12-415,371.38-186,278.52

Finding the Fourth Proportional to 300,963.12, 415,371.38 and 186,278.52

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Solution

The fourth proportional to 300,963.12, 415,371.38 and 186,278.52 is: 257,090.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,963.12 : 415,371.38 = 186,278.52 : x
  2. Step 2: Convert to fraction form
    300,963.12/415,371.38 = 186,278.52/x
  3. Step 3: Cross multiply
    300,963.12x = 415,371.38 × 186,278.52
  4. Step 4: Simplify right side
    300,963.12x = 77,374,764,985.37
  5. Step 5: Solve for x
    x = 77,374,764,985.37/300,963.12
  6. Step 6: Final answer
    x = 257,090.52

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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.