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Finding the Fourth Proportional to 145,650.56, 218,487.63 and 40,469.54

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Solution

The fourth proportional to 145,650.56, 218,487.63 and 40,469.54 is: 60,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,650.56 : 218,487.63 = 40,469.54 : x
  2. Step 2: Convert to fraction form
    145,650.56/218,487.63 = 40,469.54/x
  3. Step 3: Cross multiply
    145,650.56x = 218,487.63 × 40,469.54
  4. Step 4: Simplify right side
    145,650.56x = 8,842,093,881.79
  5. Step 5: Solve for x
    x = 8,842,093,881.79/145,650.56
  6. Step 6: Final answer
    x = 60,707.59

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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.