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Finding the Fourth Proportional to 230,674.17, 318,362.15 and 135,218.97

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Solution

The fourth proportional to 230,674.17, 318,362.15 and 135,218.97 is: 186,620.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,674.17 : 318,362.15 = 135,218.97 : x
  2. Step 2: Convert to fraction form
    230,674.17/318,362.15 = 135,218.97/x
  3. Step 3: Cross multiply
    230,674.17x = 318,362.15 × 135,218.97
  4. Step 4: Simplify right side
    230,674.17x = 43,048,601,333.89
  5. Step 5: Solve for x
    x = 43,048,601,333.89/230,674.17
  6. Step 6: Final answer
    x = 186,620.81

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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.