Home / 211,982.69-318,006.30-131,955.90

Finding the Fourth Proportional to 211,982.69, 318,006.30 and 131,955.90

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Solution

The fourth proportional to 211,982.69, 318,006.30 and 131,955.90 is: 197,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,982.69 : 318,006.30 = 131,955.90 : x
  2. Step 2: Convert to fraction form
    211,982.69/318,006.30 = 131,955.90/x
  3. Step 3: Cross multiply
    211,982.69x = 318,006.30 × 131,955.90
  4. Step 4: Simplify right side
    211,982.69x = 41,962,807,522.17
  5. Step 5: Solve for x
    x = 41,962,807,522.17/211,982.69
  6. Step 6: Final answer
    x = 197,953.94

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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.