Home / 230,808.27-318,568.55-135,345.72

Finding the Fourth Proportional to 230,808.27, 318,568.55 and 135,345.72

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Solution

The fourth proportional to 230,808.27, 318,568.55 and 135,345.72 is: 186,808.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,808.27 : 318,568.55 = 135,345.72 : x
  2. Step 2: Convert to fraction form
    230,808.27/318,568.55 = 135,345.72/x
  3. Step 3: Cross multiply
    230,808.27x = 318,568.55 × 135,345.72
  4. Step 4: Simplify right side
    230,808.27x = 43,116,887,499.53
  5. Step 5: Solve for x
    x = 43,116,887,499.53/230,808.27
  6. Step 6: Final answer
    x = 186,808.25

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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.