Home / 331,315.18-457,202.82-202,469.31

Finding the Fourth Proportional to 331,315.18, 457,202.82 and 202,469.31

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Solution

The fourth proportional to 331,315.18, 457,202.82 and 202,469.31 is: 279,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,315.18 : 457,202.82 = 202,469.31 : x
  2. Step 2: Convert to fraction form
    331,315.18/457,202.82 = 202,469.31/x
  3. Step 3: Cross multiply
    331,315.18x = 457,202.82 × 202,469.31
  4. Step 4: Simplify right side
    331,315.18x = 92,569,539,495.45
  5. Step 5: Solve for x
    x = 92,569,539,495.45/331,315.18
  6. Step 6: Final answer
    x = 279,400.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.