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Finding the Fourth Proportional to 325,754.40, 488,048.40 and 279,098.40

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Solution

The fourth proportional to 325,754.40, 488,048.40 and 279,098.40 is: 418,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,754.40 : 488,048.40 = 279,098.40 : x
  2. Step 2: Convert to fraction form
    325,754.40/488,048.40 = 279,098.40/x
  3. Step 3: Cross multiply
    325,754.40x = 488,048.40 × 279,098.40
  4. Step 4: Simplify right side
    325,754.40x = 136,213,527,562.56
  5. Step 5: Solve for x
    x = 136,213,527,562.56/325,754.40
  6. Step 6: Final answer
    x = 418,147.93

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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.