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Finding the Fourth Proportional to 335,139.96, 462,963.12 and 304,871.88

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Solution

The fourth proportional to 335,139.96, 462,963.12 and 304,871.88 is: 421,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,139.96 : 462,963.12 = 304,871.88 : x
  2. Step 2: Convert to fraction form
    335,139.96/462,963.12 = 304,871.88/x
  3. Step 3: Cross multiply
    335,139.96x = 462,963.12 × 304,871.88
  4. Step 4: Simplify right side
    335,139.96x = 141,144,436,765.07
  5. Step 5: Solve for x
    x = 141,144,436,765.07/335,139.96
  6. Step 6: Final answer
    x = 421,150.72

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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.