Home / 257,043.29-354,695.10-142,317.73

Finding the Fourth Proportional to 257,043.29, 354,695.10 and 142,317.73

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Solution

The fourth proportional to 257,043.29, 354,695.10 and 142,317.73 is: 196,384.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,043.29 : 354,695.10 = 142,317.73 : x
  2. Step 2: Convert to fraction form
    257,043.29/354,695.10 = 142,317.73/x
  3. Step 3: Cross multiply
    257,043.29x = 354,695.10 × 142,317.73
  4. Step 4: Simplify right side
    257,043.29x = 50,479,401,474.12
  5. Step 5: Solve for x
    x = 50,479,401,474.12/257,043.29
  6. Step 6: Final answer
    x = 196,384.82

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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.