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Finding the Fourth Proportional to 386,482, 533,163.72 and 273,367.12

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Solution

The fourth proportional to 386,482, 533,163.72 and 273,367.12 is: 377,118.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,482 : 533,163.72 = 273,367.12 : x
  2. Step 2: Convert to fraction form
    386,482/533,163.72 = 273,367.12/x
  3. Step 3: Cross multiply
    386,482x = 533,163.72 × 273,367.12
  4. Step 4: Simplify right side
    386,482x = 145,749,430,624.89
  5. Step 5: Solve for x
    x = 145,749,430,624.89/386,482
  6. Step 6: Final answer
    x = 377,118.29

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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.