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Finding the Fourth Proportional to 154,155.48, 231,233.76 and 43,347.48

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Solution

The fourth proportional to 154,155.48, 231,233.76 and 43,347.48 is: 65,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,155.48 : 231,233.76 = 43,347.48 : x
  2. Step 2: Convert to fraction form
    154,155.48/231,233.76 = 43,347.48/x
  3. Step 3: Cross multiply
    154,155.48x = 231,233.76 × 43,347.48
  4. Step 4: Simplify right side
    154,155.48x = 10,023,400,786.92
  5. Step 5: Solve for x
    x = 10,023,400,786.92/154,155.48
  6. Step 6: Final answer
    x = 65,021.37

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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.