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Finding the Fourth Proportional to 230,659.92, 318,342.48 and 135,204.72

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Solution

The fourth proportional to 230,659.92, 318,342.48 and 135,204.72 is: 186,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,659.92 : 318,342.48 = 135,204.72 : x
  2. Step 2: Convert to fraction form
    230,659.92/318,342.48 = 135,204.72/x
  3. Step 3: Cross multiply
    230,659.92x = 318,342.48 × 135,204.72
  4. Step 4: Simplify right side
    230,659.92x = 43,041,405,872.51
  5. Step 5: Solve for x
    x = 43,041,405,872.51/230,659.92
  6. Step 6: Final answer
    x = 186,601.15

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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.