Home / 331,639.20-497,461.14-141,939.72

Finding the Fourth Proportional to 331,639.20, 497,461.14 and 141,939.72

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Solution

The fourth proportional to 331,639.20, 497,461.14 and 141,939.72 is: 212,910.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,639.20 : 497,461.14 = 141,939.72 : x
  2. Step 2: Convert to fraction form
    331,639.20/497,461.14 = 141,939.72/x
  3. Step 3: Cross multiply
    331,639.20x = 497,461.14 × 141,939.72
  4. Step 4: Simplify right side
    331,639.20x = 70,609,494,922.48
  5. Step 5: Solve for x
    x = 70,609,494,922.48/331,639.20
  6. Step 6: Final answer
    x = 212,910.58

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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.