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Finding the Fourth Proportional to 230,499.81, 318,131.75 and 133,765.56

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Solution

The fourth proportional to 230,499.81, 318,131.75 and 133,765.56 is: 184,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,499.81 : 318,131.75 = 133,765.56 : x
  2. Step 2: Convert to fraction form
    230,499.81/318,131.75 = 133,765.56/x
  3. Step 3: Cross multiply
    230,499.81x = 318,131.75 × 133,765.56
  4. Step 4: Simplify right side
    230,499.81x = 42,555,072,026.94
  5. Step 5: Solve for x
    x = 42,555,072,026.94/230,499.81
  6. Step 6: Final answer
    x = 184,620.86

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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.