Home / 331,638.20-497,562.46-118,401.54

Finding the Fourth Proportional to 331,638.20, 497,562.46 and 118,401.54

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Solution

The fourth proportional to 331,638.20, 497,562.46 and 118,401.54 is: 177,639.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,638.20 : 497,562.46 = 118,401.54 : x
  2. Step 2: Convert to fraction form
    331,638.20/497,562.46 = 118,401.54/x
  3. Step 3: Cross multiply
    331,638.20x = 497,562.46 × 118,401.54
  4. Step 4: Simplify right side
    331,638.20x = 58,912,161,510.19
  5. Step 5: Solve for x
    x = 58,912,161,510.19/331,638.20
  6. Step 6: Final answer
    x = 177,639.85

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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.