Home / 211,802.87-317,704.43-132,972.45

Finding the Fourth Proportional to 211,802.87, 317,704.43 and 132,972.45

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Solution

The fourth proportional to 211,802.87, 317,704.43 and 132,972.45 is: 199,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,802.87 : 317,704.43 = 132,972.45 : x
  2. Step 2: Convert to fraction form
    211,802.87/317,704.43 = 132,972.45/x
  3. Step 3: Cross multiply
    211,802.87x = 317,704.43 × 132,972.45
  4. Step 4: Simplify right side
    211,802.87x = 42,245,935,768.09
  5. Step 5: Solve for x
    x = 42,245,935,768.09/211,802.87
  6. Step 6: Final answer
    x = 199,458.76

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1.5x scale

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.