Home / 351,735.23-485,419.25-198,787.55

Finding the Fourth Proportional to 351,735.23, 485,419.25 and 198,787.55

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Solution

The fourth proportional to 351,735.23, 485,419.25 and 198,787.55 is: 274,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,735.23 : 485,419.25 = 198,787.55 : x
  2. Step 2: Convert to fraction form
    351,735.23/485,419.25 = 198,787.55/x
  3. Step 3: Cross multiply
    351,735.23x = 485,419.25 × 198,787.55
  4. Step 4: Simplify right side
    351,735.23x = 96,495,303,430.34
  5. Step 5: Solve for x
    x = 96,495,303,430.34/351,735.23
  6. Step 6: Final answer
    x = 274,340.74

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1.5x scale

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.