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Finding the Fourth Proportional to 145,300.82, 217,963.83 and 40,119.86

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Solution

The fourth proportional to 145,300.82, 217,963.83 and 40,119.86 is: 60,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,300.82 : 217,963.83 = 40,119.86 : x
  2. Step 2: Convert to fraction form
    145,300.82/217,963.83 = 40,119.86/x
  3. Step 3: Cross multiply
    145,300.82x = 217,963.83 × 40,119.86
  4. Step 4: Simplify right side
    145,300.82x = 8,744,678,344.66
  5. Step 5: Solve for x
    x = 8,744,678,344.66/145,300.82
  6. Step 6: Final answer
    x = 60,183.27

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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.