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Finding the Fourth Proportional to 276,360.67, 414,625.61 and 141,520.21

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Solution

The fourth proportional to 276,360.67, 414,625.61 and 141,520.21 is: 212,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,360.67 : 414,625.61 = 141,520.21 : x
  2. Step 2: Convert to fraction form
    276,360.67/414,625.61 = 141,520.21/x
  3. Step 3: Cross multiply
    276,360.67x = 414,625.61 × 141,520.21
  4. Step 4: Simplify right side
    276,360.67x = 58,677,902,317.79
  5. Step 5: Solve for x
    x = 58,677,902,317.79/276,360.67
  6. Step 6: Final answer
    x = 212,323.64

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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.