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Finding the Fourth Proportional to 145,446.94, 218,173.11 and 45,604.90

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Solution

The fourth proportional to 145,446.94, 218,173.11 and 45,604.90 is: 68,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,446.94 : 218,173.11 = 45,604.90 : x
  2. Step 2: Convert to fraction form
    145,446.94/218,173.11 = 45,604.90/x
  3. Step 3: Cross multiply
    145,446.94x = 218,173.11 × 45,604.90
  4. Step 4: Simplify right side
    145,446.94x = 9,949,762,864.24
  5. Step 5: Solve for x
    x = 9,949,762,864.24/145,446.94
  6. Step 6: Final answer
    x = 68,408.20

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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.