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Finding the Fourth Proportional to 230,808.55, 318,568.94 and 135,346

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Solution

The fourth proportional to 230,808.55, 318,568.94 and 135,346 is: 186,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,808.55 : 318,568.94 = 135,346 : x
  2. Step 2: Convert to fraction form
    230,808.55/318,568.94 = 135,346/x
  3. Step 3: Cross multiply
    230,808.55x = 318,568.94 × 135,346
  4. Step 4: Simplify right side
    230,808.55x = 43,117,031,753.24
  5. Step 5: Solve for x
    x = 43,117,031,753.24/230,808.55
  6. Step 6: Final answer
    x = 186,808.64

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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.