Home / 438,916.40-658,180.20-202,137.20

Finding the Fourth Proportional to 438,916.40, 658,180.20 and 202,137.20

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Solution

The fourth proportional to 438,916.40, 658,180.20 and 202,137.20 is: 303,116.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,916.40 : 658,180.20 = 202,137.20 : x
  2. Step 2: Convert to fraction form
    438,916.40/658,180.20 = 202,137.20/x
  3. Step 3: Cross multiply
    438,916.40x = 658,180.20 × 202,137.20
  4. Step 4: Simplify right side
    438,916.40x = 133,042,702,723.44
  5. Step 5: Solve for x
    x = 133,042,702,723.44/438,916.40
  6. Step 6: Final answer
    x = 303,116.27

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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.