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Finding the Fourth Proportional to 145,466.39, 218,203.25 and 40,286.27

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Solution

The fourth proportional to 145,466.39, 218,203.25 and 40,286.27 is: 60,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,466.39 : 218,203.25 = 40,286.27 : x
  2. Step 2: Convert to fraction form
    145,466.39/218,203.25 = 40,286.27/x
  3. Step 3: Cross multiply
    145,466.39x = 218,203.25 × 40,286.27
  4. Step 4: Simplify right side
    145,466.39x = 8,790,595,388.45
  5. Step 5: Solve for x
    x = 8,790,595,388.45/145,466.39
  6. Step 6: Final answer
    x = 60,430.42

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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.