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Finding the Fourth Proportional to 235,181.72, 324,500.10 and 139,720.52

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Solution

The fourth proportional to 235,181.72, 324,500.10 and 139,720.52 is: 192,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,181.72 : 324,500.10 = 139,720.52 : x
  2. Step 2: Convert to fraction form
    235,181.72/324,500.10 = 139,720.52/x
  3. Step 3: Cross multiply
    235,181.72x = 324,500.10 × 139,720.52
  4. Step 4: Simplify right side
    235,181.72x = 45,339,322,712.05
  5. Step 5: Solve for x
    x = 45,339,322,712.05/235,181.72
  6. Step 6: Final answer
    x = 192,784.21

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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.