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Finding the Fourth Proportional to 235,166.32, 324,520.32 and 139,670.56

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Solution

The fourth proportional to 235,166.32, 324,520.32 and 139,670.56 is: 192,739.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,166.32 : 324,520.32 = 139,670.56 : x
  2. Step 2: Convert to fraction form
    235,166.32/324,520.32 = 139,670.56/x
  3. Step 3: Cross multiply
    235,166.32x = 324,520.32 × 139,670.56
  4. Step 4: Simplify right side
    235,166.32x = 45,325,934,825.78
  5. Step 5: Solve for x
    x = 45,325,934,825.78/235,166.32
  6. Step 6: Final answer
    x = 192,739.91

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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.