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Finding the Fourth Proportional to 300,936.67, 415,335.20 and 186,252.21

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Solution

The fourth proportional to 300,936.67, 415,335.20 and 186,252.21 is: 257,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,936.67 : 415,335.20 = 186,252.21 : x
  2. Step 2: Convert to fraction form
    300,936.67/415,335.20 = 186,252.21/x
  3. Step 3: Cross multiply
    300,936.67x = 415,335.20 × 186,252.21
  4. Step 4: Simplify right side
    300,936.67x = 77,357,097,959.53
  5. Step 5: Solve for x
    x = 77,357,097,959.53/300,936.67
  6. Step 6: Final answer
    x = 257,054.41

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1.5x scale

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.