Home / 211,970.28-318,002.12-117,338.50

Finding the Fourth Proportional to 211,970.28, 318,002.12 and 117,338.50

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Solution

The fourth proportional to 211,970.28, 318,002.12 and 117,338.50 is: 176,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,970.28 : 318,002.12 = 117,338.50 : x
  2. Step 2: Convert to fraction form
    211,970.28/318,002.12 = 117,338.50/x
  3. Step 3: Cross multiply
    211,970.28x = 318,002.12 × 117,338.50
  4. Step 4: Simplify right side
    211,970.28x = 37,313,891,757.62
  5. Step 5: Solve for x
    x = 37,313,891,757.62/211,970.28
  6. Step 6: Final answer
    x = 176,033.60

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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.