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Finding the Fourth Proportional to 337,173.20, 505,419.01 and 145,172.87

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Solution

The fourth proportional to 337,173.20, 505,419.01 and 145,172.87 is: 217,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,173.20 : 505,419.01 = 145,172.87 : x
  2. Step 2: Convert to fraction form
    337,173.20/505,419.01 = 145,172.87/x
  3. Step 3: Cross multiply
    337,173.20x = 505,419.01 × 145,172.87
  4. Step 4: Simplify right side
    337,173.20x = 73,373,128,234.26
  5. Step 5: Solve for x
    x = 73,373,128,234.26/337,173.20
  6. Step 6: Final answer
    x = 217,612.57

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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.