Home / 257,037.10-354,711.15-143,859.85

Finding the Fourth Proportional to 257,037.10, 354,711.15 and 143,859.85

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Solution

The fourth proportional to 257,037.10, 354,711.15 and 143,859.85 is: 198,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,037.10 : 354,711.15 = 143,859.85 : x
  2. Step 2: Convert to fraction form
    257,037.10/354,711.15 = 143,859.85/x
  3. Step 3: Cross multiply
    257,037.10x = 354,711.15 × 143,859.85
  4. Step 4: Simplify right side
    257,037.10x = 51,028,691,945.55
  5. Step 5: Solve for x
    x = 51,028,691,945.55/257,037.10
  6. Step 6: Final answer
    x = 198,526.56

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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.