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Finding the Fourth Proportional to 230,912.93, 318,879.92 and 218,332.89

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Solution

The fourth proportional to 230,912.93, 318,879.92 and 218,332.89 is: 301,507.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,912.93 : 318,879.92 = 218,332.89 : x
  2. Step 2: Convert to fraction form
    230,912.93/318,879.92 = 218,332.89/x
  3. Step 3: Cross multiply
    230,912.93x = 318,879.92 × 218,332.89
  4. Step 4: Simplify right side
    230,912.93x = 69,621,973,404.90
  5. Step 5: Solve for x
    x = 69,621,973,404.90/230,912.93
  6. Step 6: Final answer
    x = 301,507.48

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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.