Home / 297,321.18-446,049.90-128,869.80

Finding the Fourth Proportional to 297,321.18, 446,049.90 and 128,869.80

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Solution

The fourth proportional to 297,321.18, 446,049.90 and 128,869.80 is: 193,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,321.18 : 446,049.90 = 128,869.80 : x
  2. Step 2: Convert to fraction form
    297,321.18/446,049.90 = 128,869.80/x
  3. Step 3: Cross multiply
    297,321.18x = 446,049.90 × 128,869.80
  4. Step 4: Simplify right side
    297,321.18x = 57,482,361,403.02
  5. Step 5: Solve for x
    x = 57,482,361,403.02/297,321.18
  6. Step 6: Final answer
    x = 193,334.23

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1.5x scale

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.