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Finding the Fourth Proportional to 235,950.32, 325,610.96 and 128,520.09

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Solution

The fourth proportional to 235,950.32, 325,610.96 and 128,520.09 is: 177,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,950.32 : 325,610.96 = 128,520.09 : x
  2. Step 2: Convert to fraction form
    235,950.32/325,610.96 = 128,520.09/x
  3. Step 3: Cross multiply
    235,950.32x = 325,610.96 × 128,520.09
  4. Step 4: Simplify right side
    235,950.32x = 41,847,549,241.59
  5. Step 5: Solve for x
    x = 41,847,549,241.59/235,950.32
  6. Step 6: Final answer
    x = 177,357.46

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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.