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Finding the Fourth Proportional to 259,656.75, 358,327.40 and 140,424.75

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Solution

The fourth proportional to 259,656.75, 358,327.40 and 140,424.75 is: 193,786.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,656.75 : 358,327.40 = 140,424.75 : x
  2. Step 2: Convert to fraction form
    259,656.75/358,327.40 = 140,424.75/x
  3. Step 3: Cross multiply
    259,656.75x = 358,327.40 × 140,424.75
  4. Step 4: Simplify right side
    259,656.75x = 50,318,034,861.03
  5. Step 5: Solve for x
    x = 50,318,034,861.03/259,656.75
  6. Step 6: Final answer
    x = 193,786.74

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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.