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Finding the Fourth Proportional to 324,996.88, 487,506.11 and 111,762.70

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Solution

The fourth proportional to 324,996.88, 487,506.11 and 111,762.70 is: 167,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,996.88 : 487,506.11 = 111,762.70 : x
  2. Step 2: Convert to fraction form
    324,996.88/487,506.11 = 111,762.70/x
  3. Step 3: Cross multiply
    324,996.88x = 487,506.11 × 111,762.70
  4. Step 4: Simplify right side
    324,996.88x = 54,484,999,120.10
  5. Step 5: Solve for x
    x = 54,484,999,120.10/324,996.88
  6. Step 6: Final answer
    x = 167,647.76

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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.