Home / 257,188.30-354,919.80-142,474.36

Finding the Fourth Proportional to 257,188.30, 354,919.80 and 142,474.36

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Solution

The fourth proportional to 257,188.30, 354,919.80 and 142,474.36 is: 196,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,188.30 : 354,919.80 = 142,474.36 : x
  2. Step 2: Convert to fraction form
    257,188.30/354,919.80 = 142,474.36/x
  3. Step 3: Cross multiply
    257,188.30x = 354,919.80 × 142,474.36
  4. Step 4: Simplify right side
    257,188.30x = 50,566,973,139.72
  5. Step 5: Solve for x
    x = 50,566,973,139.72/257,188.30
  6. Step 6: Final answer
    x = 196,614.60

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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.