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Finding the Fourth Proportional to 324,379.90, 486,583.10 and 111,294.34

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Solution

The fourth proportional to 324,379.90, 486,583.10 and 111,294.34 is: 166,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,379.90 : 486,583.10 = 111,294.34 : x
  2. Step 2: Convert to fraction form
    324,379.90/486,583.10 = 111,294.34/x
  3. Step 3: Cross multiply
    324,379.90x = 486,583.10 × 111,294.34
  4. Step 4: Simplify right side
    324,379.90x = 54,153,943,614.08
  5. Step 5: Solve for x
    x = 54,153,943,614.08/324,379.90
  6. Step 6: Final answer
    x = 166,946.05

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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.