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Finding the Fourth Proportional to 304,986.56, 457,557.28 and 91,753.28

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Solution

The fourth proportional to 304,986.56, 457,557.28 and 91,753.28 is: 137,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,986.56 : 457,557.28 = 91,753.28 : x
  2. Step 2: Convert to fraction form
    304,986.56/457,557.28 = 91,753.28/x
  3. Step 3: Cross multiply
    304,986.56x = 457,557.28 × 91,753.28
  4. Step 4: Simplify right side
    304,986.56x = 41,982,381,227.88
  5. Step 5: Solve for x
    x = 41,982,381,227.88/304,986.56
  6. Step 6: Final answer
    x = 137,653.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.