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Finding the Fourth Proportional to 486,365, 729,550.74 and 153,941

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Solution

The fourth proportional to 486,365, 729,550.74 and 153,941 is: 230,912.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,365 : 729,550.74 = 153,941 : x
  2. Step 2: Convert to fraction form
    486,365/729,550.74 = 153,941/x
  3. Step 3: Cross multiply
    486,365x = 729,550.74 × 153,941
  4. Step 4: Simplify right side
    486,365x = 112,307,770,466.34
  5. Step 5: Solve for x
    x = 112,307,770,466.34/486,365
  6. Step 6: Final answer
    x = 230,912.53

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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.