Home / 339,918.12-509,877-161,885.34

Finding the Fourth Proportional to 339,918.12, 509,877 and 161,885.34

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Solution

The fourth proportional to 339,918.12, 509,877 and 161,885.34 is: 242,827.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,918.12 : 509,877 = 161,885.34 : x
  2. Step 2: Convert to fraction form
    339,918.12/509,877 = 161,885.34/x
  3. Step 3: Cross multiply
    339,918.12x = 509,877 × 161,885.34
  4. Step 4: Simplify right side
    339,918.12x = 82,541,611,503.18
  5. Step 5: Solve for x
    x = 82,541,611,503.18/339,918.12
  6. Step 6: Final answer
    x = 242,827.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.