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Finding the Fourth Proportional to 539,583.48, 809,362.08 and 140,222.88

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Solution

The fourth proportional to 539,583.48, 809,362.08 and 140,222.88 is: 210,330.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,583.48 : 809,362.08 = 140,222.88 : x
  2. Step 2: Convert to fraction form
    539,583.48/809,362.08 = 140,222.88/x
  3. Step 3: Cross multiply
    539,583.48x = 809,362.08 × 140,222.88
  4. Step 4: Simplify right side
    539,583.48x = 113,491,081,820.39
  5. Step 5: Solve for x
    x = 113,491,081,820.39/539,583.48
  6. Step 6: Final answer
    x = 210,330.91

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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.