Home / 257,025.31-354,683.34-142,295.90

Finding the Fourth Proportional to 257,025.31, 354,683.34 and 142,295.90

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Solution

The fourth proportional to 257,025.31, 354,683.34 and 142,295.90 is: 196,361.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,025.31 : 354,683.34 = 142,295.90 : x
  2. Step 2: Convert to fraction form
    257,025.31/354,683.34 = 142,295.90/x
  3. Step 3: Cross multiply
    257,025.31x = 354,683.34 × 142,295.90
  4. Step 4: Simplify right side
    257,025.31x = 50,469,983,306.89
  5. Step 5: Solve for x
    x = 50,469,983,306.89/257,025.31
  6. Step 6: Final answer
    x = 196,361.92

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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.