Home / 351,916.32-485,638.56-198,952.14

Finding the Fourth Proportional to 351,916.32, 485,638.56 and 198,952.14

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Solution

The fourth proportional to 351,916.32, 485,638.56 and 198,952.14 is: 274,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,916.32 : 485,638.56 = 198,952.14 : x
  2. Step 2: Convert to fraction form
    351,916.32/485,638.56 = 198,952.14/x
  3. Step 3: Cross multiply
    351,916.32x = 485,638.56 × 198,952.14
  4. Step 4: Simplify right side
    351,916.32x = 96,618,830,778.52
  5. Step 5: Solve for x
    x = 96,618,830,778.52/351,916.32
  6. Step 6: Final answer
    x = 274,550.58

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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.